This ultra slim crystal clear glass screen protector has super tough 9H hardness, meaning it’s virtually impossible to scratch the screen underneath. The silicone-based base layer bonds tight to the phone without adhesive, meaning no bubbles when applied. 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. It also has next-generation oleophobic (oil resistant) coating for reduced fingerprints and a smoother feel. Overall, this screen protector is the answer for anyone who’s nervous about a cracked screen and scratches, and wants stunning high-definition clarity with no noticeable screen distortion. Easy to apply and remove, with no sticky residue left behind. With these tempered glass screen protectors there is no need for any alcohol solution as installation is straight forward. Basic Instruction for Installing Just make sure before applying. – You have clean fingers – Clean your device screen Once you are ready to stick the glass on make sure you peel of sticker, align and apply instantly. Once the glass is on put add some pressure with your fingers to allow glass to stick on. In case of screen damage, the screen protector will break into small pieces that are not sharp, making it a lot safer than other glass screen protectors available in the market.