Kalaideng Universal Flexible Absorbable Long Arm Cell Phone Car Mount - Retail Packaging - Black 1.Solid spring mounting system to hold and release the device 2.Extra large 7cm diameter vacuum suction cup attaches securely to the windshield or most smooth flat surfaces and can be removed easily with the switch. 3.Fully adjustable with 360 degree rotation for quick portrait and landscape views 4.Easily adjusted to cradle the device between 0mm-100mm in width, with natural rubber on the arm locks to provide better protection 5.Compatible with iPhone, Samsung Galaxy, HTC, Blackberry, GPS, etc.