Features: 1. Minimize the risk of slipping and scratching of the watch back case. 2. It can be set in different positions for different cases with different sizes. 3. Comes 4 adjustable nylon pegs-vise can mount on a desk or work table. 4. Good for holding small parts, electronics, hobby work: jewelry, model makers, and more. 5. Suitable to hold large watch case up to 55mm. 6. Easy and convenient for operation, suitable for watch repairing and adjustment. 7. With the watch holder, you can easily open your watch back case in seconds for repairing or other uses. Specification: Material: Aluminum Alloy Size: app.11x6.1x3.5cm/4.33x2.4x1.38inch Jaw Width: about 55mm/2.17" Max Adjustable Width: about 55mm/2.17" Main Color: Black Application: watch fixing and repairing Usage: Use the knob to adjust to the appropriate position, you can fix the position Package includes: 1 x Watch Case Holder (without retail package)