3D Curved design, FULL Screen Coverage . Made with premium quality of Tempered Glass 9H Hardness Glass consist of 4 layers for maximum durability Covers Full Screen Protect your LCD screen from dust, scratches, fingerprints, grease, etc. Compare normal screen protector, it is more safety, even objects such as knives and keys will not scratch the tempered glass . If the screen broken, the Tempered Glass breaks into small pieces that are not sharp, making it safer than other glass products . The Tempered Glass has an AF coating that prevents fingerprints and other contaminants .