1、8 Assorted Molds: The watch suction cup opener holder kit comes with 8 different sized molds, suitable for various watches. The 8 accompanying molds fit all sizes of watch cases, making it easy to use and convenient for repairing different sized cases. 2、Practical Repair Tool: The case opener holder is suitable for most screw back watches, making it an ideal practical tool for watchmaking and watch repair. 3、Simple and Quick Operation: The watch suction cup opener holder with a rotating handle is convenient and labor saving. You can quickly open the watch back with ease. 4、Premium Materials: Made of premium flexible silicone and aluminum alloy, the watch repair tool is wear resistant, durable, and can be used for a long time. It is a perfect tool for replacing watch crystals and snap on case backs, ensuring convenience during use. 5、Easy to Use: The watch suction cup opener holder is specifically designed for opening watch backs and is a must have tool for repair personnel. It is easy to use, allowing you to quickly open the watch case for repair, saving your time and improving work efficiency. 1 x Watch Suction Cup Opener Tool Holder8 x Mould Item Type: Watch Suction Cup Opener Tool HolderMaterial: Aluminum alloy, SiliconeApplicable back cover diameter: 16mm / 0.6in, 20mm / 0.8in, 23mm / 0.9in, 26mm / 1in, 30mm / 1.2in, 34mm / 1.3in, 40mm / 1.6in, 45mm / 1.8in