The display glass protects the screen of your device from fingerprints, scratches and damage during falls. The display glass, which only covers the screen, does not artificially lower the physical buttons, the camera and the flash. Also, the camera flash is not disturbed by a reflective glass layer. To attach the protective glass to the display of the device, all you need to do is remove the protective film and slowly place the screen protector on the screen. The glass will automatically suck on the display and leave no air bubbles.