Watch Screen Guard are made by quality material which comes with a 9H surface hardness to protect it from day to day scratches. 9H edge ensures a smooth rounded finish with no rough edges and zero compromise on clarity & transparency. tempered glass provides extensive protection from outside damages and scratches including sharp objects like knives and keys and its laser cut for a perfect fit. Our glass protectors are the latest in state-of-the-art screen protection technology. Glass-like feel means your finger glides smoothly over the screen protector, just like it does over your i Watch screen. The super-thin protector preserves touchscreen sensitivity to respond accurately to your touch. What’s more, it has been engineered with fingerprint and oil resistance to help keep the screen feeling clean and looking clear / Series 3,2,1 (38MM)