The anti-blue function effectively blocks damage of blue light to the eyes and protect your eyesight.Made of high-quality KMTC aluminum-silicon material, it has good shatter-proof perfomance and prevents screen breakage effectively. Slik screen printed full screen binding design for tight fit and comprehensive protection.in thickness, high clearness and high transparency, displaying clear and high-definition images.Automatic binding, easy to use, and fast sticking.