Versatile Watch Back Wrench: This tool is designed for watches with grooved cases, featuring an adjustable range of 15-55mm. By rolling the adjusting wheel, you can set the drill bit spacing to precisely fit the groove of your watch back, ensuring a secure and scratch-free operation. Multi-Functional Screwdriver: Equipped with five interchangeable bits (-1.0/ -1.2/ -1.5 /+1.5 /+1.8), this screwdriver is perfect for handling watch battery, case, and band screws, as well as screws on eyeglasses. The screwdriver's end cap opens to reveal a storage space for additional bits, enhancing its utility and convenience. Secure Watch Case Holder: This tool aids in stabilizing the watch during repairs, compatible with watches up to 50mm in diameter. It reduces the risk of slips and scratches by securely holding the watch, making it an essential component for any watch repair kit. Comprehensive Tool Set: Includes a watch back case opener, a pry, a caseback holder, a five-in-one screwdriver handle, tweezers, 20PCS 1.5ΦSpring bar in various sizes (4* 16/18/20/22/24mm), and a cleaning cloth, covering all needs for watch maintenance and battery replacement. Color: As Shown Material: Plastic+Metal Package Contents: 1 set Watch Battery Replacement Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.