Gravity holder with 9H hardness tempered glass panel. Easy to install, with one push of a button. As you place the phone, the clamps on the side lock it with the help of gravity and hold it firmly against bumps in the road. With its 360° it makes it easy for you to use your phone as you see fit, and it is compatible with most vents. It is designed so that all the buttons on the phone as well as the charger port are accessible. Supports devices with dimensions from 4 to 7 inches.