Premium Tempered Glass Screen Protector Screen Guard for iPhone 4 4S Full screen protection, the hole-bit precision: according to the screen size, a seamless heavenly robe protection. The whole adsorption: exhaust effect industry leading, high adsorption, simpler and quick installation. Serfance hardness: 8-9H, three times hardness than PET screen protector. Thickness: 0.4mm Specially designed tempered GLASS screen protector for Apple iPhone 4 4S