TLQ 9H Explosion-proof Premium Tempered Glass Screen Protector Film For sony xperia z3 compact mini back Surface is anti-oil processing (Oleophobic coating), so fingerprints and oil is not easy to stay surface, easy to clean Surface hardness: The surface has a hardness of?8-9h,It is 9 times stronger than ordinary glasses. Tool and keys are not cuts Explosion-proof, shatter-resistant glass breaks into small piece of for?sharp, more secure than other glass products. Fully transparent: very thin, chemically treated transparent tempered glass. Delicate touch: the back of strong adhesives, easy to install, and therefore does not affect the touch sensitivity of the touch screen