The watch case holder tool features 4 hard adjustable pins designed to minimize the risk of slipping and scratching. It can be set in different positions to accommodate various case sizes. This is a professional tool set ideal for watch repair. Note: The design of the watch back base opener has been updated. This is a new waterproof watch back case wrench. Simple to use and fully adjustable, it includes tempered pins for easy use on water-resistant cases. Its compact size ensures convenient handling. Jaw distance is adjustable from 12mm to 57mm. It is used for securing watch cases during the opening and closing of waterproof backs. Holds watches in place when using a hand wrench to remove or install case backs. Helps reduce the risk of slipping and scratching the watch case back. Can also serve as a holder while performing watch maintenance. The tool vise can be mounted on a desk or workbench and securely holds cases up to 70mm in diameter. Dimensions: 70mm x 28mm x 11mm. Watch holder size: 50mm x 50mm. Material: Steel, metal, plastic. Color: Blue, yellow. Package Contents: 1 x Watch Back Case Opener 1 x Watch Holder Only the items listed above are included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.