Polishing metal edge full coverage from edge to edge will maximum protection from impact drops, scratches, scrapes, and bumps.3D cutting technology for full coverage on curved corners and edges Glass material after high tempered steel processing, surface hardness up to 8-9 h, impact resistance is strong, not easy scratches Maximum Protection: The Edge of this Tempered Glass is made of premium “Carbon Fiber” -More soft (Note a Glass), to absorb the excessive bump & shock without screen cracking. This “Ballistic Tempered Glass” can greatly prevents Scratches & Abrasion, even Sharp Objects such as Knives & Keys can hardly scratch your screen High Touch Response: Ultra-thin profile with only 0.3mm thickness maintains the original touch responsiveness 99% Transparency: 99% light penetration keeps down the original style of your device BUBBLE-FREE INSTALLATION - With good automatic adsorption ability