Flat Surface Mount with Short Double Socket Arm & 1/4-20 Camera Threaded Adapter The RAM-B-202-A-366U consists of a 2.5 inch diameter round base that contain the universal AMPS hole pattern, SHORT double socket arm and 1 inch ball, connected to a round plate with 1/4 inch -20 camera thread. The male 1/4 inch -20 threaded steel stud will connect to any standard female thread found on camcorders, digital cameras and POV cameras. The mount is designed with a RAM 1 inch diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm;this allowing for almost infinite adjustment and perfect viewing angles.