The RAM-D-201U-MI1, standard size double socket arm with jam nut, has a socket at both ends that accommodates 2.25" ball bases. A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection. This socket technology allows for almost infinite adjustment and perfect viewing angles.
Material: Powder Coated Marine Grade Aluminum
Ball Size: 2.25" Rubber Ball "D" Size
Note: The "U" in the part number reflects product packaged in poly bag.