AMZER ShatterProof Screen Protector is super thin urethane film at only 0.2 mm thick, ShatterProof certified by the ASTM (American Society for Testing and Materials) having passed D1004 Tear Strength, D2240 Hardness and D4329 UV Light Discoloration Tests. The protector is scratch resistant, stress resistant, drop resistant and a has special self healing capability with dissipative functioning embodied - it is virtually indestructible making your iPhone 5 unbreakable!.