This Screen guard is 0.33 mm thick made with chemically heatedtransparent glass. With a surface hardness of 9H it can effectivelyprotect your screen from scratches and external shocks. Its oleophobiccoating prevents fingerprints and other stains making it easier toclean. The self adhesive silicone can touch on the screen smoothly,makes the installation easy, sensitive for operation. If broken thetempered glass breaks into small pieces that are not sharp making itsafer for the user.