Description: Professional Watch Case Opener, T-Shaped, made of Alloy material, the two claws are short, thick and hard, with scale display, suitable for rotating back covers. Can easily remove or screw down the waterproof watch back cover to replace the battery or repair the watch. The opener is adjustable, can be used to open waterproof watches of different sizes, Easy to use, Just find the hole rehind the cover watch position, adjustable hold down the option after can open the back cover With this tool, you can easily complete the battery replacement by yourself, Very convenient, easy to carry and easy to use Specification: Item Type: Watch Back Cover Remover Material:Alloy Length: 13.5cm/5.3 inch Width:8cm/3.1 inch Handle Width: 1.5cm/0.6 inch Package Includes: 1 Piece Watch Back Case Opener Remover Note: 1. Fix the watch with the base. 2. Adjust the distance between the two claws on the opener to clamp the two grooves in the front of the back cover. 3. Rotate the handle to adjust the lower steel teeth and jam the rut under the back cover. 4. Clamp the back cover and rotate it counterclockwise (the back cover must be clamped, otherwise the back cover cannot be opened normally). 5. Installation is to tighten the back cover clockwise (before reinstalling the back cover, you can apply some waterproof paste to increase the waterproof effect of the watch).