Features 1??PRECISE TOOL: Our 5700 Watch Case Opener is specifically designed to open oyster waterproof watches, making it the go to tool for watchmakers and repairmen. 2??EASY AND CONVENIENT: With a user friendly design, this tool makes opening and closing watch cases an effortless task. Ideal for both professional use and individual use at home. 3??USER FRIENDLY: Save on frequent trips to the watchmaker shop. With this versatile tool, you can perform basic watch repairs and adjustments any time you need. 4??SAFE AND GENTLE: No chemicals or lasers involved. This tool opens watch cases using a physical principle which avoids any risks or side effects, guaranteeing a harm free operation. 5??DURABLE AND LONG LASTING: Made with quality metal, our Watch Back Case Opener is sturdy, durable, and built for long term use. It can withstand intense and repeated usage without damage. Specification Item Type: Watch Opener Tool Material: Metal Package List 1 x Watch Opener 12 x Claw Switching Head 1 x Dual Clamp Head 4 x Screw 4 x Fixing Frame 1 x Adjustment Base 8 x Adapter