As all the protection it is possible to miss the first establishment, but once the experienced technical (lint-free cloth, poses with card-type CB to avoid air bubbles), protection is almost invisible on the surface of the screen. At one time (more than two months after installation, I wondered if I had protection so it is fine and does not affect the quality of the screen!). In short, I've changed because I had a small scratch (key stroke?) And presto, it's gone.