The full face tempered glass is a full coverage hardened glass, specially designed to protect your mobile screen from scratches and other damage. In case of a fall, it does not guarantee that the screen will not crack along with it, but it provides an additional layer of protection.
The black frame covers the entire surface of the screen, including the edges. It features adhesive over the entire surface, unlike edge glue glass protectors that only have glue around the perimeter, which helps ensure better fit and trouble-free touch screen operation. Additionally, it prevents dust from getting underneath, which can happen with edge glue protectors when the perimeter glue wears out.
It can be removed at any time without leaving marks or causing any issues to the screen.