Tempered Glass Screen Protector of GPS Tracker watch Glass Screen Protector of GPS Tracker watch screen protector 01 Glass type -Japan Asahi Glass ( Japan AGC glass) Quality -Grade AAA Thickness-0.25mm/0.33mm Transparency-99% high clear Raidan-3D Hardness:9H tempered glass Features-avoid sractches,Anti-fingerprint, Ant-oil, Anti-broken,Explosion-proof 1. Tempered glass 0.33mm in thickness, High-strength anti-scratch & explosion-proof 2. Anti-fingerprint, anti-oil 3. High transparent,Keep clean and not easy to scratch 4. Prevent the screen from being worn and damaged due to certain conditions of the screen during use 5. It can play a certain buffering role during use