1) Asahi Japanese Glass Raw Material, with 0.33mm, 0.2mm,0.15mm thickness, round edge; 2) Full Size, edge-to-edge protection; 3) 4-5 hours Tempered Processing, with 9-10H hardness, Scratch Resistance, could be scratched for more than 2000 times, with blade, scissors, knife; 4) 0.5% density Anti-fingerprint Oil; very smooth feeling 5) Bubble free, Automatic Absorption 6) Explosion-Proof, no glass pieces scattered, no splashwhen bent to 180 angle.