Slick Shell(TM) Premium Tempered Glass Screen Protector (.4mm) 9H Hardness Rating for Apple iPhone 5/5S/5C Whole Transparency: 0.4mm thick and made with chemically treated, transparent tempered glass. Surface hardness : 8~9H : The surface of the screen protector has a hardness of 8~9H, three times stronger than regular screen protector. Even shard objects such as knives and keys will not scratch the tempered glass. Oleophobic Coating : The screen protector has an oleophobic coating that prevents fingerprints and other contaminants and makesthe film easy to clean. Delicate Touch : The screen protector is coated on the back with a strong silicon adhesive that makes installation easy and attaches the film firmly so as to not affect the touch screen sensitivity.