Watch repair is a difficult task, and it needs to be done correctly fully; otherwise, your expensive watch can get damaged too. Without proper watch tools, you won’t be able to get it in working condition.
Get the best watch repair kit and do the maintenance of your watch at your home. It comes with necessary tools by which you can accomplish the tasks like changing the cell, unscrewing the screws, taking off the watch band without any hassle.
You can comfortably remove the watch back, fix the crystal, change the battery, and do other repairs without paying the high cost for repair services.
Fixing this way will save you a lot of time and money. Also, you will have some great fun while fixing it at home with your own maintenance kit. Such kit comes with some impressive tools like watch case opener, screwdriver set, tweezers, eyeglass, watch hand lifting levers, movement holder, parts container, watch degreasing fluid, and oil.
Well, you need not worry about the guide to use these tools, and they come up with a manual that will assist you in how to use the items properly.
To help you get the best kit, we have come up with some of the top-rated watch kits that will help you get away with the repair in an easy way.
Best Watch Repair Kit Reviews 2021
There are many devices that tell us the exact time, but watches have their importance. What will you do if your watch is out of warranty and it needs repair?
Watch repair tools, and supplies are an affordable investment that will help you extend your watch’s life. This way, you can do many repairs without paying the high service cost. Such kit offers you to do DIY fixes at your home. By getting a watch repair set, you make sure that that your timepiece operates all the time correctly. This way you can have comfortable wear too.
The pricing of these kit varies a bit because of the tools count, manufacturing process, and the material. A good quality set will help you to do the repair work more efficiently and conveniently.
These tools are designed in a way to service the watch in a number of ways from dismantling the timepiece to replacing the battery. Moreover, they can perform more complicated repairs too. Such kits come in various styles and shapes. Some of them are brand specific too. Thus you will get to read some of the best reviews for such kits here.
Top Watch Repair Kits Comparision Table
Weight: 1.6 pounds
Dimension: 9.8 x 4.7 x 1.9 inches
Weight: 1.15 pounds
Dimension: 8.1 x 4.4 x 2 inches
Weight: 1.55 pounds
Dimension: 8.6 x 4.4 x 2.4 inches
Weight: 1.1 pounds
Dimension: 6.9 x 5.1 x 2.8 inches
Weight: 1.35 pounds
Dimension: 8.3 x 2 x 4 inches
Weight: 8.8 ounces
Dimension: 7 x 4.2 x 1.3 inches
Weight: 1.69 pounds
Dimension: 9.2 x 5.3 x 2.3 inches
Weight: 15.2 ounces
Dimension: 6.3 x 4.5 x 1.3 inches
The Kit Shop TKSBH2017
Weight: 15.2 ounces
Dimension: 8.4 x 4.4 x 2 inches
Weight: 11.7 ounces
Dimension: 8.3 x 4.8 x 2.3 inches
1) UnaMela: Best Watch Repair Kit Overall (Our Top Pick)
Do get this kit if you desire to have a repair set for electronic maintenance. You can repair game consoles, small household appliances, and various electronics items (watches, toys, etc.) with this kit. This marvelous set comes with 56 different types of bits. These bits are made up of durable, hard, and strong steel that does not rust easily.
The set includes opening tools, tweezers, screwdriver set, magnetizing and demagnetizing tools, plastic spudgers, metal spudgers, suction cup, sim card ejector pin, utility knife, anti-static wrist strap, and many more impressive tools.
The kit includes all special and common bits. This will make your repair work much safer and easier. You can open the screen using the triangular plectrums in the set. You can unscrew things easily with a flexible tool in the set. The flexible shaft is made from plastically material, which is of the highest quality and offers great toughness, flexibility, and long term use.
9.8 x 4.7 x 1.9 inches
No. Of Pieces:
- The flexible shaft in the set is impressive for hard to reach areas. It is made up of remarkable quality plastic material that has excellent toughness.
- The magnetic bits are constructed from CR-V steel that is strong and durable.
- The tweezers are manufactured from high quality noncorrosive stainless steel.
- The handles of the tools are ergonomically designed and have an anti-slip function. This makes working much comfortable.
- The sharpened spudgers are comfortable to embed in the gap. The cross and round spudgers are labor-saving as they are lever principle designed. This helps dong repair work easier.
- You can adjust the screwdriver bit magnetism by the magnetizer. This solves that issue of too much or insufficient magnetism.
- The tool bag keeps the tools organized and is much convenient to carry.
- Compact, lightweight, and high-quality tools with noncorrosive material. Ergonomically designed handles, anti-slip function, anti-static strap, and convenient to carry.
- Great selection, solid construction, strong magnet, impressive extender mechanism and nice firm grip.
- Cheap plastic insert in the case for holding the tools.
This kit can help you with a lot of maintenance tasks. It is recommended for beginners who are getting started with electronic repair work. The 56 magnetic bits of the set is made with high precision and have an impressive toughness. It has anti-slip and magnetizing and demagnetizing tools that make work safer and easier.
2) HAOBAIMEI 7539596985: Best Professional Watch Repair Tool Kit
If the shopkeeper can repair your watch so can you too. Get this easy to use set of tools that will help you save a lot more in repair work. This 168 piece set comes with a convenient carry case. The kit includes watch band tools, spring bar tools, watch holder, case opener, watch band link remover and, other superb tools.
There is a user manual with the kit that will help you understand its features. Its clear and colored pictures will make it much easier for you to understand the instructions. These wonderful tools are made from stainless steel that is tough and durable. Also, the tools are easy to clean with a cloth. The kit comes up with impressive replacement springs for almost all size watch bands.
With this marvelous kit, you can comfortably open the watch back, adjust the straps, do battery replacement and other common watch repair tasks. These tools are made up of durable steel. This set has 12-month service support by which you can have a full refund or replacement for a defective item. Thus there is no hassle to return.
- This is a fantastic kit not only for repairing the watch but also replacing its battery, adjusting straps and many other tasks.
- You can comfortably remove the battery covers with the precision screwdrivers in the set.
- The adjustable watch case opener has tempered pins that make it an excellent choice for opening waterproof cases.
- The watch case holder can hold 10mm – 50mmm watch cases.
- You can grip the watch comfortably without fear of scratching the lens with the impressive watch brace.
- The carrying case holds all tools securely.
- The jaws of the 2-jaw case back open widely, which is excellent for larger watches.
- Brand: HAOBAIMEI
- Model: 7539596985
- Weight: 1.15 pounds
- Dimension: 8.1 x 4.4 x 2 inches
- Warranty: 12-month
- Well made carry case, Sturdy tools with 12 months of service support.
- Multifunctional kit with high-quality tools and durable steel construction.
- Easy to use and clean, affordable, and waterproof watch opening tool.
- Basic user manual
- Lack of magnifying glass
- Hard to pull zipper handle for the carrying case
This 168 tools kit is a good fit for both professionals and beginners. It includes three precision screwdrivers that can be used to remove the battery cover. Furthermore, it is a brilliant kit for opening cases of waterproof watches. The tool materials are made up of stainless steel and are much durable.
3) Eventronic FBA_WT15: Best Top Rated Watch Repair Kit
Now you can easily change your watch batteries, do the watch cleaning, and adjust bracelets yourself. This is a high quality set for watch repair. It has got all the fantastic tools you need to work with your watch. This set has two watch band repair tools that allow you to choose your desired tools and to enjoy working with different band repair methods. The simple case knife allows you to open watch cases easily in minutes. This makes battery replacement tasks much easier.
The kit is superb for watchband adjustment, opening watch backs, adjusting bands, changing watch batteries, and other repair work. It includes watch spring bar tool, watch band link remover, anti-magnetic screwdriver, and many other top-notch tools. The watch back remover in the kit gives you significant leverage to comfortably tighten and loosen the watch bands. By and large, this kit is a game-changer as it will make you self sufficient in doing your watch repair work yourself.
- This kit comes in a nylon bag that is easy for storage and carrying.
- The splittable knife can easily open waterproof cases up to 34mm.
- The spring bar remover can be used for replacement/adjustments.
- The high-quality anti-magnetic screwdriver is best for removing battery covers.
- There is a repair punch clock with cylindrical, rectangular, and flatlining.
- You can remove small screws without the precision screwdriver.
- Comfortably add or remove the links with the help of watch band strap link remover and make the watch fit your wrist perfectly. The task of replacing the battery is much comfortable with the watch case wrench that allows you to open the case back and also close it easily after opening.
- You can get the spring bars in and out of with the metal spring bar. It has a metric ruler that helps in measuring the width.
- Brand: Eventronic
- Model: FBA_WT15
- Weight: 1.55 pounds
- Dimension: 8.6 x 4.4 x 2.4 inches
- Material: Stainless Steel
- Portable nylon bag for secure storage and solid tools with a firm grip. High-quality anti-magnetic screwdriver saves long term costs.
- Easy to use the kit offers comfortable pin replacement. Compact, affordable, and excellent variety of tools.
- Incomplete instruction manual
- Poor organization of tools in the bag. The tool doesn’t stay in their place.
The kit offers you two watchband repair tools, and you can work with the one you like. These professional tools will be much helpful for you in common watch troubles. Furthermore, all parts are brilliantly made, and the case opener pins are well machined.
4) GANGZHIBAO GT6496: Best Precision Screwdriver Set with Electronics Repair Tool Kit
You can repair PPPC, tablet, watches, phones, games consoles, camera and other electronic items with the kit. You will have the best experience with this set as it comes with 60 different kinds of bits. The anti-static wrist strap in the set protects electronics from static.
This kit includes screwdriver bits, screwdriver adapter, flexible shaft, wrist strap, knife set, and other top-class tools. You can protect privacy by repairing your laptops at home with this beautiful kit. The precision screwdriver kit is of impressive quality. The tweezers are made up of tough and durable steel that is corrosion resistant. Its tip doesn’t deform easily. Furthermore, metal spudgers have a nonslip design. This way, you can work comfortably and efficiently.
- The kit includes 60 types of bits of different types of equipment.
- The set offers plastic pry tools, steel spudger, and razor scraper to clean the screen.
- The screwdriver bit is manufactured from stainless steel that is hardened to a great level. The non-slip screwdriver handle is designed in a special way that allows you to use them efficiently. The tip of the screwdrivers doesn’t easily get stripped. Thus they are stable.
- The tweezers have strong corrosion resistance. Also, it can’t be easily deformed and stripped.
- The ultra-thin metal sprudge has a non-slip design.
- The set has tweezers and anti-static wrist straps that prevent damage.
- The knife is lightweight and has a textured grip that reduces fatigue and offers excellent control and fatigue.
- Also, there is a translucent safety cap that prevents your finger from having a scratch.
- The tweezers have an angled tip that offers easy access.
- The roll-up case offers perfect storage.
- Brand: GANGZHIBAO
- Model: GT6496
- Weight: 1.1 pounds
- Dimension: 6.9 x 5.1 x 2.8 inches
- Warranty: lifetime
- Color: 96pcs+extra Accessory
- Material: Stainless Steel
- Unique design, multifunction high-quality tools with a non-slip handle, ergonomic design, stainless steel construction and great control.
- Heavy-duty set with a Lifetime warranty. Durable, and amazing variety of tools.
- Weak magnetization
- Can’t add extra tools in the roll-up cloth case.
This 96 in 1 set allows you to do the electronic repair work the easy way. Its 60 different screwdriver bits are quite useful. Also, the tools have strong corrosion resistance, and their tips don’t easily deform.
5) Ohuhu Y14-80100-05-FBA: Best 176 PCS Watch Case Opener and Band Link Pin Tools Set
This is a must-have kit for both casual owners and watchmakers. It offers all the best tools that will help you repair your watch. The set offers impressive versatility. Because of the interchangeable parts, the tools in the set are excellent for various watch types and watch parts. These durable tools are constructed from engineering grade plastic, premium carbon steel, and thick rubber.
You need not be an expert to repair your watch with this kit. If you are a beginner, then no need to worry as it comes up with an easy step by step guide of the most common repairs. The kit includes a pin remover, case opener knife, pin punches, pin remover, nose plier, precision screwdriver, dust blower, and many other marvelous tools. You can use it to repair the watch of any brand or size.
- The loupe and handpiece loop in the set is for hand-free visibility. This way, you won’t struggle in seeing tiny parts.
- There come a rubber duster blower and a soft wipe cloth with this kit by which you can clean hard to each and delicate components easily.
- The zippered carrying bag keeps the tools neat and tidy.
- The set includes 1.2mm, 1,4mm, and 1.6mm screwdrivers.
- The screwdriver in the set features a screw on the side by which you can tighten the screwdriver blade.
- Brand: Ohuhu
- Model: 13 PCS Watch Repair
- Weight: 1.35 pounds
- Dimension: 8.3 x 2 x 4 inches
- Warranty: 18-month warranty
- Size: 147 PCS
- Convenient, compatible, durable and long lasting
- Well made, and easy to use tools with nice and secure storage pouch.
- Perfect starter kit offering excellent value. Amazing assortment, fast, and accurate tools.
- Poor instruction manual. You will have to refer to Youtube to have proper guidance of tools.
- There is no holder with the hammer. This is quite tricky when putting it in the case.
- The quality is a bit below professionals.
This 176pc set offers great versatility. The tools are professional and are much easy to use. They work for almost all watches.
6) MulWark MLK-53762: Best Budget Watch Repair Tools Set
The screwdrivers are color-coded and have easy to hold handles and spinner tops. They are impressive for precision projects. This set comes with a 100% satisfaction guarantee and can be repaired, altered, or replaced in a timely manner. The colorful tools have nice casing and work brilliantly in hands. The handle butt spins amazingly. This way, you can easily apply pressure on the end of the screwdriver and twist it. These mini screwdrivers are sturdy and user-friendly. Moreover, their magnetic tips will help you in dealing with small screws.
This fantastic kit is specially designed for watches, eyeglass repair, accessory, jewelry, tablets, cell phones, and other electronics items. The tools are made up of metal, and they don’t break on repeated use. The pivot end of the tools allows them to be turned with ease. All in all, this remarkable and colorful product is of an exact value.
- The tools are manufactured from heat treated steel that makes them durable and long lasting.
- The swivel end cap offers constant finger pressure while doing the task of driving.
- The lightweight, color-coded handles have spinner tops.
- There are three flatheads in the set. These are of 2.0mm, 2.4mm, and 3.0mm.
- The tools have slip-resistant handles that offer a comfortable grip and positive torque. Likewise, they prevent blisters.
- The tools are color-coded. This way, you won’t have an issue in grabbing the right one. The tough organizer case has secure-close that keeps the tools secured.
- The heat-treated blades have a corrosion-resistant nice plated bar. Also, the blade tips offer a snug fit, excellent screw holding, and tight tolerance.
- The screwdrivers have magnetic tips. This way, you won’t drop the small screws.
- Brand: MulWark
- Model: MLK-53762
- Weight: 8.8 ounces
- Dimension: 7 x 4.2 x 1.3 inches
- Warranty: lifetime
- Pattern: Screwdriver + Magnetizer
- Solid and high-quality set, lightweight, easy to use tools with slip-resistant handles, lifetime warranty and 100% satisfaction guarantee.
- Corrosion resistance, comfortable grip and impressive construction.
- Magnetic with a lovely color and swivel base.
- The mini screwdriver can’t be used for high torque applications.
- Very weak magnetism
- The small screwdriver beds on applying high pressure.
This pocket tool set is made from heat-treated chrome vanadium steel alloy. The tools have magnetic tips for holding the screws perfectly. Furthermore, they offer positive torque and are slip-resistant.
7) EZTool 7539596515: Best 16 Tools Watch Repair Set with Service Manual
This brilliant set comes with 65 step by step photos by which you can take the guidance of using the tools. The instruction booklet is much helpful for noobs. The set contains all the essential tools. These include the watch resizing tools, watchband tools, and many other marvelous items. Moreover, you can replace batteries, adjust link bracelet and straps with the tools in this kit. These fantastic tools are made from stainless steel. Also, it comes with a 100-day replacement warranty. This guarantees the purchase and allows you to buy with confidence.
The case of the kit is made up of sturdy, versatile canvas. The 41-page illustrated guidebook that comes with this set will be much helpful to you. You can fix your watches like a pro with this brilliant kit. There is an extra-large case wrench in this set that can easily open oversized watches. This perfect watch kit is easy peasy and extremely useful. It also has a spring bar tool that you can use with the leather bands. Now you won’t be overcharged for watch repair service. You can comfortably do the battery replacement and add or remove links from watch bands.
- The case wrench opens up to almost 58mm.
- Tools come in a beautiful, branded zip-up case. This keeps them secured and organized.
- The spring bars in the set are 20 percent thicker than the average ones. This way, they won’t get loose.
- You can use the tiny cloven end of the pointed pin tool to grasp around the pin.
- The watch case removal spanner tool has interchangeable heads. This can be used in the indentation around the large watches.
- The small size of the spring bar makes it much more precise and more comfortable to work with. The case wrench has a fine adjustment for screws. The set comes with a clear and well-written instruction book.
- The blue colored case opener is much sharper than an ordinary case knife.
- There is an additional tip in the set for pin-pusher.
- Brand: EZTool
- Model: 7539596515
- Weight: 1.69 pounds
- Dimension: 9.2 x 5.3 x 2.3 inches
- Warranty: 100 DAY
- 100 days replacement warranty and excellent instruction manual with the set.
- Soft fabric textured case, stainless steel construction, solid functionality, and easy to use tools.
- The tool for removing the watch back cover is small for some watches.
- This is a great beginner kit and not the advanced level kit.
The kit comes with a 41-page guidebook which has step by step photos. This universal watch repair set allows you to fix like a pro watchmaker. The case wench tool is quite wider, and the case opener tool is much sharper than the knife.
8) Floureon LYSB00SURH7W4-CMPTRACCS: Best 38-piece Precision Screwdriver Set
This is a professional kit that is widely used for repairing work. You can not only repair watches with the tools but also take apart mobile devices comfortably without damaging the cover. The set includes screwdrivers, trigonous paddle, plastic pry, tweezer, non-slip rubber handle, sim ejector pin, suction cup, extension tool, and much other fantastic stuff.
The offset tweezers in the set can be used for various jobs like mobile phone, television, automotive work, watch repair, PDA and other applications of the sort. The tools in the set have their slot. They snap in place and fit there perfectly. Altogether, you will surely love the case and how the bits are stored in it.
- The tools have ergonomic design that offers comfortable handling.
- The tools are stylish and are much lightweight. This way, they can be carried anywhere quite easily. Thus they are portable.
- You can prolong the extension bar as per your needs.
- The tools have stainless steel tip. Furthermore, they have plastic handles with rubberized grip. The pin in the set can be used to open the sim card slot of the phones.
- There is a rubber-coated, reliable, and comfortable universal driver in the set that has a metal clamping mechanism. The bit holders have a visual bit representation of each bit type. This way, you can recognize the different configurations ( Torx and pentalobe) easily.
- The case that comes with the tools is compact and has a magnetic closure. It is well made and closes securely
- Brand: Floureon
- Model: LYSB00SURH7W4-CMPTRACCS
- Weight: 15.2 ounces
- Dimension: 6.3 x 4.5 x 1.3 inches
- Warranty: 1 year
- Material: steel, plastic
- Number Of Pieces: 38
- Measurement System: english/standard
- Size: 38-Piece
- Style: Screw
- Study case and tools with high quality and ergonomic design. Stylish, lightweight, and portable. Easy to carry tools have changeable tips.
- 1-year warranty and 100% satisfaction guaranteed. Anti-slip, strong magnetic tip, flexible and excellent precision screwdriver set.
- Lack of spudger
- Tweezers might bend on applying high pressure
These anti-slip tools have rubberized grips. The universal driver in the set is solid and has a metal clamping mechanism. Furthermore, the compact tool case secures the tools and has a magnetic closure.
9) The Kit Shop TKSBH2017: Best Watchmaker’s and Jewelers Tool Set
The set comes up with a 41-page instruction manual by which you won’t have any mistakes in doing repair work. This manual has almost 60 illustrations and images and offers you a step by step guide. It includes a hammer, pliers, case opener, spring tool, link remover tool, opening blade, wrist band holder, tweezers, cleaning cloth and screwdrivers.
Now you can avoid mistakes and do perfect repairs with the instruction manual. The tools are compatible with the majority of watch brands. This impressive set has almost all standard items included. The tools are strong, long-lasting, and of premium quality. They come with a 100-day warranty which offers you great peace of mind. Thus it is a perfect set for avid watch lovers.
- The kit comes with multiple size pins by which you can adjust any size watch band comfortably.
- There is a clear and concise instruction manual in the kit.
- The flathead screwdriver can turn the tiny screws easily.
- The tweezers work great in picking up small objects.
- Brand: The Kit Shop
- Model: TKSBH2017
- Weight: 15.2 ounces
- Dimension: 8.4 x 4.4 x 2 inches
- Warranty: 200 DAY
- Material: Forged
- Full-color instruction manual with a zippered pouch. Easy to use and an inexpensive kit.
- Quality tools in a storage case with 200 days warranty
- The tools used to remove the watch back don’t grip the notches perfectly.
- The pin tool can be adjusted for different band thickness.
The tools in the set are compatible with various watch brands. It consists of multiple sizes to pin by which you can adjust all brand watches comfortably.
10) Paxcoo WRK-01: Best Professional Watch Opener and Back Remover Set
The set comes with a wonderful carrying case. This high-quality set is multifunctional and comes with a convenient storage case. The tools have a 48 days money-back guarantee. You can easily open waterproof cases with the adjustable remover in the set. Its adjustable tempered pins work excellently on waterproof cases. Furthermore, the case opener has a premium plastic handle with a pry head. Also, the tweezers can remove and insert the intricate pieces. It has spring bar tools, screwdriver set, watches band link remover, watches back remover, watches bracelet link remover, and many other impressive watch repair tools.
With the amazing tools in the kit, you can comfortably remove watch back, change watch batteries, remove watch band link, adjust watch strap bands, and do other common tasks. The spring bar tool in the set is made up of stainless steel. Do get this kit if you intend to do battery replacement for some simple repairs.
- The tools come in a beautiful black carrying zipper case that keeps the tool organized.
- The spring bar link pin remover in the set comes with four extra tips that can be used for strap replacement or adjustment.
- The watch band link remover tool can easily fit bands up to 30mm. Furthermore, these silver-colored steel tools come with three extra pins.
- The black color adjustable watch case holder can be used to repair 10mm to 50mm watch cases.
- The stainless steel watch back case opener is adjustable. It can open waterproof cases. This tool has tempered pins that can be used easily in water-resistant cases.
- There are three precision screwdrivers in the kit which can be used to remove the battery covers.
- Brand: Paxcoo
- Model: WRK-01
- Weight: 11.7 ounces
- Dimension: 8.3 x 4.8 x 2.3 inches
- Warranty: 24-months
- Material: metal
- Style: 168 pack
- Easy to use toolset with 24 months warranty.
- Good quality and adjustable tools in a zipper case with amazing functionality and versatility.
- The tweezers have thick tips, and they don’t line up perfectly
- The mini screwdriver bends on applying high pressure.’
This 168 pcs tool kit comes with an instruction leaflet, which is quite helpful. The tools are accurate and work brilliantly in adjusting and maintain the watches.
Buyer’s Guide – Buying the Best Watch Repair Kit
You need to have the best electrical and mechanical repair tools to do the maintenance and repair work efficiently and perfectly. Watch repairing tasks is quite exciting but with the wide assortment of such kits in the market, you might get confused too as which one to buy. You need to consider the following factors while buying the watch repair kit. This way, you will be able to get the best tools.
Watch tools come in both good and bad quality. Thus you need to check while shopping whether all pieces of the kit are durable or not. Make sure that they do not bend or break easily.
The high-quality watch repair kit will last for many years. This could be a worthwhile investment. Don’t buy cheap and low-quality tools. They have many imperfections.
Quality of the metal used in making blades affect your watch repair work to a great extent. The blades of the tools need not be of soft metal. If they have soft metal, then they will result in slippage. Thus get the tools that have hard blades. Also, the torque generated by the hard metal blade is much high.
Nice Grip Handles
The tool handles that are made from stainless steel usually produce an excellent grip. This is because they are knurled to produce a shaft. Also, ergonomic handles that have a rubberized coating on the handles due to which shaft work smoothly.
Buying the kit from the famous brand is preferable as they are mostly in good working condition.
Ease of Use
Do check if the individual tools in the set are comfortable to use or not. Also, make sure they are large enough to hold in hand easily. They need to be sturdy too.
Before buying the kit you need to ensure that it can accommodate to the size of your watch. In the case of oversized watches, a large diameter case wrench is required to open them.
Now you have a better understanding of watch repair tools, and you can decide which one to get for a timepiece. Buy the best quality tools that are also affordable. These will last for a longer time. To sum up, using impressive quality tools is a great pleasure.
Also, have a look at the best homeowner tool reviews to do the common DIY tasks easily.
Top Rated Watch Repair Tools Kit