Features:Surface is anti-oil processing (Oleophobic coating)， so fingerprints and oil is not easy to stay surface， easy to clean. Full bonding， automatic adsorption can be repeated bonded Fully transparent: very thin， chemically treated transparent tempered glass. Surface hardness: The surface has a hardness of 8-9H， It is 9 times stronger than ordinary glasses. Tool and keys are not cuts Delicate touch: the back of strong adhesives， easy to install， close to the screen， and therefore does not affect the touch sensitivity of the touch screen. Explosion-proof， shatter-resistantIt is environmental， no glue.Installation Guide:Step 1 Please select a dust-free room to attached， it is best in bathroom. Step 2 Use wipes clean the screen’s dust or foreign bodies. Step 3 Lightly attached alignment phone mirror， down， left， right border. Step 4 Removing the upper protective film completely. Step 5 aligned attached position again， then a little harder to four border. Please do not press the center part of the phone