The full face tempered glass by Wozinsky is a full coverage tempered glass, specially designed to protect your phone 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 screen surface, including the edges. 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 functionality. It also prevents dust from getting underneath, which can happen with edge glue when the perimeter adhesive wears out. It is compatible with the Galaxy A33.