Have you been afraid to use tempered glass because of failed installation attempts? Then the problem is solved! Save time with a revolutionary installation method and get a guaranteed fit every time with AlignMaster. In the package you will receive an innovative mounting frame to eliminate wasted time to achieve the best results. Place the frame over the phone, press in the middle and see the glass attached in place. The Glas.tR screen protector has a 9H hardness. - The package contains two screen protectors - Glas.tR has a thickness of only 0.3 mm - 9H surface hardness makes the screen protector extremely scratch-resistant even when in contact with compatible with sharp objects such as a knife or key - Special oleophobic coating that protects the screen from causing contaminants to stick to the screen protector - The screen protector is a perfect complement to your valuable screen * The tempered glass is Case Friendly which means that it is compatible with most cases & covers on the market and always compatible with all cases from Spigen.