The RAM-B-102-237U consists of a double socket arm, diamond base and 2.54cm (1") diameter rubber ball, connected to a 1/4" -20 camera thread. The male thread matches most standard camera and camcorder female threads found on the bottom of the camera. The diamond bases measure 6.17 cm (2.43") X 3.33 cm (1.31") diamond base and contain two holes 4.86cm (1.912") from center to center, positioned at both ends of the diamond base. Designed into the mount is a 2.54cm (1") diameter patented rubber ball and socket system with adjustment points at both ends of the socket arm; this with a twist of the arm knob, allows for infinite articulation and optimum viewing angles.