8-10H Hardness Ultra thin (.4mm) technology Asahi glass based in Japan Specification: - The glass is 0.4T thick and made with chemically treated, transparent tempered glass. - The surface of the glass has a hardness of 8-10H, two times stronger than regular PET film. Even shard objects such as knives and keys will not scratch the glass. - The glass is coated on the back with a strong silicon adhesive that makes installation easy and attaches the film firmly so as to not affect the touch screen's sensitivity. - The glass has an oleophobic coating that prevents fingerprints and other contaminants and makes the film easy to clean. - If broken, the glass breaks into small pieces that are not sharp, making it safer than other glass products.