Watch Repair Tool - Non-Marking Rubber Ball Case Opener, Watch Back Remover, Friction-Based Back Cover Opener for Watches, Safe and Scratch-Free.

Material: Rubber
Product Size: Approximately 70mm in diameter when inflated
Working Principle: Utilizes the friction between the rubber ball and the watch back cover. By twisting the ball, it helps to rotate and open the watch back cover.

Includes: Yellow Watch Holder + Rubber Ball