Features: 1.Tempered glass protector is made of chemical processed glass, which has excellent window display, high sensitivity and comfortable touch teeling. 2.Oleophobic Coating: A.F(Anti-Fingerprint) coated layer for resistance against smudges and fingerprints. 3.Slim chemical treatment processed tempered glass. 4.A.S.F: Anti-syattered film(high silicone coating). 5.Advanced silicone adhesion. 6.Sebsitive touch, mirror function. 7.Absorbs 5 times more impact energy than normal screen protectors 8.Thin as 3 sheets of printer paper. Specifications: 1.Thickness: 0.4mm 2.Surface hardness: 8-9H 3.Material: Tempered glass + PET(Polyethylene terephthalate) 4.Fit for: SAMSUNG Galaxy Tab A 9.7" T550 Usage: 1.Please use included alcohol swab and the microfiber fabric to clean the LCD screen before installation. 2.Peel the protective layer off the adhesive side. 3.Carefully align the glass to the screen and alowly apply it onto the screen. 4.Press center of the GLASS lightlly then adhesive part will spread over all parts smoothly. Note: 1.When removed for re-use, the adhesive properrties might wear off to an extent.It's generally not recommended to reuse the GLASS once it's been applied. 2.Using excessive force when installing or removing the screen protector may damage the product.