1.The 9H' hardness can effectively protect your screen from scratches and external shocks. 2.If broken, the tempered glass breaks into small pleces that are not sharp, making it more safer for users. 3. The oleophobic coating can prevent fingerprints or other stains, and make the film easy to clean. 4. The self-adhesive silicone can touch on the screen smoothy. It makes the installation easy and is more sensitive for operation.