Universal Car Backrest & Windshield Swivel Plastic Holder for Tablets It has fixed mount on three sides of the holder, can firmly fasten your iPad. Press the button, the two sideward fixed mounts will flick out, then you can adjust the size of the holder. For the holder, 360-degree swivel design allows you choose the best viewing angle. The stand also can swivel 180 degrees, convenient for you to adjust the viewing angle. Make suction cup of foot - lay directly towards windshield and press the "press button" to lock it.