Smiling Apple Watch 42mm Screen Protector 0.15mm Thickness Tempered Glass High Defination Screen Protector for Iwatch 42mm Made of real tempered glass that protects the original screen from shattering, with an industry leading hardness of 9H, 3 times hardness than PET screen protector. Made to protect you and your phone - if it does break, the tempered glass breaks into small pieces that stick together, making it safer for users Helps reduce viability of fingerprints and other contaminants, making it easy to quickly clean the screen. The hole-bit precision,according to the screen size, a seamless heavenly robe protection. Exhaust effect industry leading, high adsorption, simpler and quick installation.