The full face tempered glass is a full-coverage hardened glass, specially designed to protect your mobile screen from scratches and other damages. In case of a phone drop, it does not guarantee that the screen will not break along with it, but it provides additional protection. It does not affect the screen's functionality. The black border covers the entire surface of the screen, including the edges. It is a combination of tempered glass and protective film, as it has a ceramic coating for hardness like glass but also slight elasticity like a film. Scratch-resistant, repels fingerprints but reflects light. More durable than tempered glass. It has adhesive on the entire surface, unlike edge glue glasses that have adhesive only on their perimeter. This helps in better application and smooth touch screen operation. It also prevents dust from getting underneath, which can happen with edge glue when the perimeter adhesive wears off. It is compatible with the Redmi Note 11/11S.