Double socket swivel arm features 360-degree center rotation with an overall length of 3.69" and a socket-to-socket length of 3.5" Attaches to any B size RAM® ball component, including mounting bases and device holders Double ball and socket technology allows for near-infinite adjustability of your RAM® mounting system OVERVIEW The RAP-B-200-12U composite double socket swivel arm consists of double B size 1" diameter open ball sockets with a 360-degree rotation point at the center of the arm. With open ball sockets at each end, attach RAM® B size ball components for unsurpassed adjustability. PRODUCT DIMENSIONS: Overall Length: 3.69" SOCKET-TO-SOCKET LENGTH: 3.5" BALL/SOCKET SIZE: B Size (1") WEIGHT CAPACITY: 2 lbs MATERIALS: High strength composite PACKAGING TYPE: Poly Bag