There Are 3 Reasons Why You Want A Screen Protector On Any Screen.1.To protect the screen from getting scratches. 2. To decrease the number of fingerprints that get on the screen.3. To have a nice touch experience when using the screen.Recommend: 1) Wash your hands. 2) Follow the instructions.3) This is important: After you have completed using the tape to remove any small particles from the vehicle screen use the same tape to remove any particles from the back side of the protector. The reason that you did this is that when you go to align the protector to the vehicle screen all of those particles that you did not clean beforehand on the back of the protector will transfer to your vehicle screen. And you will wonder where all of the particles came from.Package Contents: 1 x for Cadillac Lyriq 33" HD Touch-Screen Protectors; 1 X Installation tool kitSale-service: 1. When you have any questions, pls don’t hesitate to contact seller first through your amazon order; 2. Or find our amazon store and email us through the button “contact us”, we will provide help and resolve your problem.