Suction Cup Car Mount GPS Holder for GPS Easy to install on windshield / dashboard The style of ball-and-socket for the clip and easy GPS angle adjustment Diameter of the base: Approx. 2.2 inch / 5.7 cm Ball diameter: approx. 0.67 inch / 1.7 cm Rotate your GPS 360 degree turn to the left, right, and tilt the top / bottom