Allows users to quickly move cameras from vehicle to vehicle or location to location. 1/4-20 stud with lock ring. Powerful suction pad attaches to any smooth, flat, nonporous surface including windows, sheet metal, fiberglass, etc. Full range of motion at the camera-knob adjustment 210 degree tilt, 360 degree turn & 360 degree rotation. Ratcheted arm has 140 degree vertical motion. knob locks arm into place. Suction pad has 3.4" dia. Overall length is approximately 4.5" . Recommended for cameras weighing up to 3lbs. Mounts camera to a windshield. combine with 812-03 3" extension to mount camera with bottom-located 1/4-20 threaded tripod insertA powerful suction pad attaches this mount to any flat, non-porous surface. Ideal for action sports, point-and-shoot cameras, POV cameras, in-vehicle camera systems, camcorders or any device with 1/4-20 threaded tripod insert.