Design for your Eyes' Health! Anti-Blue Light Filter Tempered Glass Screen Protector prevent your Eye Retina from eye fatigue causing by Blue Ray from cellphone screen. Assist you to have a better sleep since it could soften screen's light and comfort your eyes. Premium Thin 0.3mm 2.5D Round Edges Ballistic Tempered Glass Screen Protector for your Phone Exclusively. Kindly Note: Since your Phone screen is round-edge design, this Tempered Glass Protector does not cover the entire screen, leaving reasonable edge space for wearing most brands of protective cases. Ultra 99% Transparent, 99% Accurate Touch Screen: Delicate Touch, Sensitive Response. (9H) High Hardness & Impact Resistance: the surface of tempered glass has a hardness of 9H, 3 times stronger than regular PET film.