Universal Car Phone Holder Mount Stand for iPhone 7 6 Plus Samsung Galaxy S7 Edge S6 GPS Silicone Suction Cradle Sticky gel suction base adheres to windshield, dashboard and other smooth, textured or curved surface. If it has dust, just wash it with water. When it gets dried, you can reuse it. Installation Tips: firstly press down the pressure switch in the pillar to stick on your car. The extensible arm length can be adjusted from 118mm to 165mm by loosing the screw. And the cellphone holder can rotate 360 degree to fit the watching angle. HANDS FREE: The cell phone holder installation is simple, no tools required. Easy mounting system locks and releases the device with just a push of two fingers. It can hold device from width 5.5cm/2.17'' to 8.4cm/3.31''. So it can be compatible with all cell phones within 6''