This is a glass protective surface that prevents your screen from cracking if dropped. I have used this product on my iPhone and iPad and the protective glass has broken while the screen underneath was undamaged. It comes with a lifetime warranty, pay only for shipping, to replace item after registering product with Zagg website. My iPhone was dropped (8 feet) in a construction site on a surface with pebbles with jagged edges. the edge of the glass Zagg was chipped throughout the entire upper right surface but the screen underneath was undamaged. The new Zagg screens no longer go the edge of the device so that it doesn't impede with the use of a back cover. In the past the Zagg screen would lift/bubble on the edges after installing a cover. With a good back cover and a CLEAR glass screen, you should be good to go. They are not cheap, but I have no reservations recommending this product. Being a glass product I have dropped my device and weeks later a crack across the screen appears. Be very careful removing the cover because it will cut if you are not careful. Keep the box so if you have to return the item, and register the product at your convenience. You will create a profile on the Zagg website to keep track of the item purchased.