RAM Double Socket Arm is available in medium length and can fit either a 1in B-Size ball base or C-Size 1.5in ball base. With an easy-to-adjust knob, near-infinite adjustability is ensured. The arm's overall length is 3.73in with a socket-to-socket length of 3in, and is attachable to any B or C size RAM® ball component. The double ball and socket technology aids in the adjustability of the RAM® mounting system. Made from powder-coated, marine-grade aluminum, durability in demanding environments is certain. A lifetime warranty supports the RAM Double Socket Arm. Specifications allow for a choice in ball size and length, and weight capacity varies between standard and heavy-duty use.