Feature: 1. Made of great optical glass, it is sturdy and durable, has a long service life, is scratch resistant and corrosion resistant. 2. This glass lens is crystal clear, high transparency, made to replace the watch crystals for the watch. 3. Easy to install and replace, the broken one can be easily replaced. It's very suitable for watch repairman to repair their watch by themselves. 4. Please measure the size of your glass lens before you buy it. Specification: Material: Optical Glass Usage: Watch lens, watch part Diameter: 32mm / 1.26-inch Thickness: 1.1mm / 0.04-inch Package Content: 6 x Watch Lens Glass