This new protective glass technology for smartphone screen is well designed. It is easy to install and fits well to the screen size. The result is much better than with conventional plastic films. No scratches, easy to clean, resistant to shocks. The instructions are clear. To apply for this protection film, I recommend you sit in your bathroom, to pour hot water to produce a little steam in the room. This will have the effect of making disappear suspended dust in the air that year, as well, will not come to slip into the screen and protection.