Genuine Tempered Glass Screen Protector for LG G2 Cell Phone- Optical Grade and Oleophobic Coated! Compatible with LG G2 Non Yellowing with UV Protection Made From Optical Grade Tempered Glass which Attaches Smoothly with a Residue Free Application The surface of the tempered glass has a hardness of 8-9 H and 0.3 mm thick, three times stronger than a regular screen protector film. The Premium Tempered Glass has an Oleophobic coating that prevents fingerprints and other contaminants.