Tempered glass hardness of 9H to extend the life of the screen of your device. Provides 100% the value of touch and freedom of use. Glass protects the screen against cracks, scratches and damage. Oleophobic coating provides clarity of the screen and resistance to fingerprints and dirt. Glass included elements necessary for self-assembly with special stickers to facilitate proper placement of glass. After application, the glass adheres well to the screen, leaving no air bubbles and non-adhesive formulation facilitates image of glass without leaving a trace.