The tempered glass from Powertech is a hardened glass, specially designed to cover and protect your mobile screen from scratches and other damages. It does not affect the screen's functionality. In case of a drop, it does not guarantee that the screen will not break along with it, but it provides additional protection. It has adhesive on its entire surface, unlike edge glue glasses that have adhesive only on their perimeter. This helps in better fitting and seamless touch screen operation. It also prevents dust from getting underneath, which can happen with edge glue when the perimeter adhesive wears out. It is 5D, which means it has undergone special processing to acquire curved edges that cover the entire surface of the mobile phone screen. This way, it is not noticeable that the screen has protection, but it also protects the curved edges. It is compatible with the Realme C31.