Kyocera Hydro Air C6745 / Hydro Wave C6740 - Premium Tempered Glass Clear Screen Protector The surface of the tempered glass has a hardness of 8-9H, three times stronger than regular PET film The tempered glass has an oleophobic coating that prevents fingerprints and other contaminants and makes the film easy to clean Tempered glass back is coated with a strong adhesive that makes for easy installation Tempered glass screen guard is manufactured for the Kyocera Hydro Air C6745 / Hydro Wave C6740 on the AT&T, T-Mobile, Metro PCS networks.