360 Degree Rotation & 180 AdjustmentIt is a 360rotating pole joint, so you can freely change it vertically and horizontally. As the arm rotates 180 degrees, you can use it in the forward or backward direction, you can adjust the tablet to an easy-to-see height and position!CompatibilityHeight: 5.31inch / 13.5cm - 8.07inch / 20.5cm; Width: 4.45inch / 11.3cm; Thickness: 0.79inch / 2 cmAdjust the arms up and down according to your tablet and keep the size up to about 13.5-20.5cm.(Do not scratch the side that contacts the tablet with protective mud!!)Easy to useIpe Wipe the surface you want to install. Press the pressure switch to fix the tablet holder. Adjust the arm up and down according to your tablet and turn the extension adjustment knob on the back to lock it. Adjust the angle you want with the folding arm.Please note:Ipe Wipe the contact surface to ensure adhesion. It is not attached to the contact surface like frosted glass or leather. Please be careful when using for a long time in the car because the terminal may become hot due to sunlight.