ITEM NAME:Adjustable Watch Back Case Opener Remover Watchmaker Screw Wrench Repair Tool Descriptio n Features: For opening most screw back cases A fully adjustable case opening tool Simple design with thumb screw to adjust diameter Very convenient and easy to take everywhere and easy to use Specification: Color: Blue Material: Metal Size: Approx. 2.64*1.06*0.43inch / 6.7*2.7*1.1cm (Length*Width*Thickness) Adjustable jaw distance from 0.39inch to 1.97inch (1cm to 5cm) Package includes: 1x Watch Back Case Opener Note: 1. this tool is suitable for the screw cap table, cannot be used in the gland table  (that is stuck open unscrew the bayonet table) 2.Please allow a little size error due to manual measurement. 3.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Honesty is gold for all! Adjustable Watch Back Case Opener Remover Watchmaker Screw Wrench Repair Tool