German Anti-Yellowing Material, Resists Clouding And Discoloration.Superior Shock Absorption Technology, Us Military Standard Mil-Std-810H 516.8.Defend Your Iphone'S Camera Lens, From Scratches And Cracks.Protects Your Screen From Drops And Scratches, Enhanced Protection.Comes With A Strong Built-In Magnet That Holds Up To Two Times Your Device'S Weight.4Mm Ultra-Flat Design, Easy And Natural On Desktop Or Shirt Pocket