The new PRIVACY ANTI-SPY SEMI CURVED TEMPERED GLASS by IDOL 1991 allows you to use your mobile device fearlessly in public spaces without your confidential information being exposed to prying eyes. The user can see the screen content while those around them will see a darkened screen. With a thickness of just 0.30mm, it features high-precision rounded edges for greater safety and to prevent injuries. This specific Tempered Glass acts as a polarization filter and blocks light when someone looks at the screen from the side at a 35° angle. It is designed to be fully compatible with cases that have raised edges to protect the phone screen. It has a high hardness rating of 9H, making it very difficult to scratch or even break. Even in the event of a strong impact causing it to break, it shatters into very small pieces without scattering, just like a car windshield, thus preventing user injury or screen scratches.