This means that it is a combination of a frame and a high quality hardened glass with a strength of 9H. This makes the glass invisible and provides perfect protection for the entire screen. 5D hardened glass has an adhesive layer on the entire glass surface. The reason is the perfect gluing of glass to the screen, which provides 100% protection of the display of our device. Glass is a full face (curved) - protects the whole screen Tempered glass will protect the screen of your device from mechanical damage. 100% transparent, extremely resistant to scratches and tarnishing make your device may look like new. As with any glass product, great importance has a way of finishing the edge. The edges of the glass are offered finished with rounded angle. Oleophobic layer prevents smudges and fingerprints, leaving the surface of a transparent and fast aesthetic. ABSOLUTE TRANSPARENCY: no signs of installation, dulling the surface of the screen. Excellent adhesion on glass, free of air bubbles. SURFACE HARDNESS: Specially treated glass surface of a very high hardness of 9H. Oleophobic Coating: Anti- formation on the glass of fingerprints and smudges. At the same time easy to keep clean. SENSITIVITY IN TOUCH: very high sensitivity of the glass, which does not affect the functionality of the phone and leaves the sensitivity of the screen at the same level. Shatterproof glass in case of improper use of the product (bending, breaking) broken glass is no sharp ends and is completely safe for the user. Glass Installation is very simple and all the necessary elements to it are included.