The iPhone 5/5S Steinheil Screen Protector GLAS.t is made to protect the screen from damage and scratches with a specially processed GLAS.t that has been reinforced to increase shock absorbency. The GLAS.t is transparent and the back side is covered with a strong silicone adhesive for easy installation. When installed, the touch screen's sensitivity is unaffected. GLAS.t is 0.4mm thick and made with chemically treated, transparent tempered GLAS.t. The surface of the GLAS.t has a hardness of 8-9H, three times better than regular PET film (2H-3H). Even shard objects such as knives and keys will not scratch the GLAS.t. Although the GLAS.t has the strong hardness, GLAS.t does not interfere the touchscreen responsiveness. It works and feels just like the actual screen. The GLAS.t is coated on the back with a strong silicone adhesive that makes installation easy and attaches the film firmly so as to not affect the touch screen's sensitivity. In case the screen protector cracks, the GLAS.t is tempered so it will not shatter into small pieces. GLAS.t is made with anti-shatter film so the screen protector will crack within the film for your safety. ATTENTION: The included Jelly Bean Home Buttons are only compatible with the iPhone 5C and iPhone 5. The included Back Panel Protector is only compatible with the iPhone 5S and iPhone 5.