XGear Sentinel 4.1 Tempered Glass Screen Protector for LG Nexus 4 (Back) Surface hardness of 8H (with the hardest being 10H) keeps scratches non-existent Thickness of .5mm allows you to maintain a slim and sleek profile Special coating that resists oily residue Beveled edge keeps you safe from cracked & chipped edges Maintain full access to all features, including camera, flash, and speaker