The full face tempered glass is a full-coverage tempered glass screen protector designed to protect your mobile screen from scratches and other damages. In case of a drop, there is no guarantee the screen won't break, but it provides additional protection. It does not affect the screen's functionality.
The black frame covers the entire surface of the screen, including the edges. It features adhesive across its entire surface, allowing for better application and trouble-free touch screen operation. Additionally, its design prevents dust from passing underneath, which can happen with edge glue protectors when the edge adhesive wears off.
It can be removed at any time without leaving marks or causing issues to the screen.