VILLA tempered glass are Perfect to work with touch screen technology Premium Quality Anti-Static and Anti-Friction UV Protection and against abrasion Non-corrosive Adhesive Perfect fit and leaves no residue when removed This is made to protect the LCD from damage and scratches with specially processed glass that has been reinforced to increase shock absorbency. Surface hardness : 9H Delicate Touch : 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's sensitivity. Toughened glass has high transparency and the color never changes but it is breakable if not handled properly. Premium tempered glass is shatter-proof meaning it won't splinter into sharp fragments, making it safer than regular glass. To top it all off, this screen protector has an oleophobic coating that makes it resistant to fingerprints Caution: the product must be installed in a dust-free environment; applying excessive force during installation or removal may damage the Tempered Glass. Phone models shown in the pictures are for illustration purpose only.