Just 0.4 mm thick, but extremely hard, scratch-resistant, and featuring an anti-fingerprint coating. The screen protector glass is manufactured through a complex process, polished with industrial diamonds, cleaned, and rigorously quality-checked multiple times. The result is an extremely hard screen protector of the highest quality, with nine times the hardness of standard glass. Additionally, it is very easy to apply - the adhesive layer is made of silicone, which bonds with the smartphone display to prevent air bubbles from forming.