The tempered glass by Strong is a hardened glass, specially designed to cover and protect your phone's screen from scratches and other damage. It does not affect the screen's functionality. In case of a phone drop, it does not guarantee that the screen will not break along with it, however, it is an additional protection. Its matte coating prevents fingerprints on its surface, as well as light reflection. In some cases, it may limit screen clarity. It is 5D, which means it has undergone special processing to acquire curved edges that will cover the entire surface of the phone screen. This way it is not apparent that the screen has protection, but additionally, the curved edges are also protected. It is compatible with iPhone 13 Pro Max.