Easy Installation With metal frame,it is easy to install the JanCalm Camera Lens Protector and bubble free, Strong adhesive makes the lens film stick firmly to the lens, not easy to fall off. Full Coverage Protection Full coverage protection edge and perfect fit to the camera lens to protect the lens from scratches or accidental damage. Tempered Glass Camera Lens Protector Made of high quality tempered glass, it is excellent in wear resistance.protect from accidental scuffs and scratches by knife, keys and other hard objects.