Universal Tool Great for removing unbreakable watch crystals without dismantling the watch.Safe way to remove watch crystals without taking the watch apart. Designed for both ladies' and gents' watches, supplied complete with base plate. Great for removing unbreakable watch crystals without dismantling the watch. This pocket-sized design is very convenient. Awesome, non-sliding fixtures allow you to repair them anytime, anywhere. Very easy to carry. The machine size is adjustable, used in all shapes, sizes of watch. Can remove and replace all watch glass. Jaws open from 12 to 35 millimeters (0.47 inch to 1.38 inch). This product is designed to remove and insert any dome acrylic or plastic crystal. With this repair tool, it is very easy to replace the battery and fix the watch movement. Specification: Item Type: Watch Crystal Remover Material: Steel, Plastic Jaws Open: 12 mm to 35 mm / 0.47inch to 1.38inch Crystal Lift Size: Approx. 70 * 40 * 40mm / 2.75 * 1.57 * 1.57inch Base Plate Size: Approx. 70 * 40 * 5mm / 2.75 * 1.57 * 0.2inch Color: As Pictures Show Weight: 150g / 5.29oz Package Contents: 1 x Watch Case Remover 1 x Base Plate Notes: Size for manual measurement, there may be a 1 to 3 mm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!