The standard double socket arm allows any 1" diameter ball accessory to be connected on either end of arm. A tightening screw on the side of the arm enables the sockets to clamp firmly to a RAM 1" diameter ball. When loosening the side screw, a single spring inside the arm opens the sockets allowing you to pivot the ball and socket connection or completely disconnect the ball from the socket.

The arm length is 2-7/8" when measured from socket center to socket center. The total length of the arm is 3-11/16".