Premium Crystal Clear Tempered Glass High-transparency glass for users who demand clarity and protection: Crystal clear design – preserves original screen color and sharpness with minimal distortion. Glass material: High alumina glass (0.33 mm) – superior strength and durability. Premium adhesive – prevents white edges and bubbles after application. 3000 scratch test with Japanese AF coating – excellent fingerprint resistance and easy-to-clean surface. 9H hardness, impact tested: at least 64 g steel ball dropped from 70 cm – strong drop protection. Double 100% quality control – each unit tested individually twice for guaranteed quality.