Special Note: This Glass Screen Protector is Fit for Lenovo Tab M8 8" Tablet only, NOT fit for any other devices Advanced Silicone Adhesion You just need to put the sreen protector gently on the cell Phone, it can be perfect installed. Tight adsorption between the protector and cell Phone won't produce any bubbles after installation. Safe to use: The Screen protector's multi-layer, shatter-proof tempered glass construction has smooth edges around the perimeter and speaker/home key openings for a feel that's just like your own screen - but infinitely more protective.Friendly Reminder:Please be careful to avoid scratching on your fingers, as it is made of fiber glass and has sharp edges like glass when it is broken.Package Include :1. 2 x Tempered Glass Screen Protector2. 2 x Cleaning Cloth 3. 2 x Alcohol Wipe