Easy one-press mounting system releases and locks the device with just a push Strong suction cup with sticky gel attaches to the dashboard & windshield or most smooth flat surface Optimal viewing is available with 360 degree rotation ball for portrait and landscape views， and adjustable arm to set the height Cushioned expandable holder Adjustable swivel ball-head design for 360 rotation Extra strength suction lock For all smart phone user from 4.8-5.5 inch Specifications: Material: Plastic Dimension: 5.3 in x 4.7 in x 3.7 inches Package includes 1 x Auto Lock Universal 360°Rotating Car Windshield Mount Holder for Cell Phone GPS