This Tempered glass screen guard uses high performance environment friendly adhesive, automatic bonding, no bubble, no residuals, no tracks, and corrode no surface with curved edges. With high anti-static performance, it can be washable and reusable, anti-scratch, and anti-friction. Treat the surface with smart process to against abrasion and scratching. The hardness of 9h with 2.5D rounded edges, can effectively prevent abrasion and UV on LCD screen, Non-corrosive adhesive, effectively take care of your loved machine. Safe and reliable that does not contain any harmful ingredient to the human body. The surface of the tempered glass has a hardness of 9H, three times stronger than a regular screen protector film. Even objects such as knives and keys will not scratch the tempered glass. The Premium Tempered Glass has an oleo phobic coating that prevents fingerprints and other contaminants. Sensitive Touch The tempered glass screen protector has a strong adhesive that makes installation easy and attaches the film firmly so as to not affect the touch screen's sensitivity. Anti-Shatter Film If broken, the Tempered Glass breaks into small pieces that are not sharp, making it safer than other glass products.