FEATURES 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 Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments Backed by a lifetime warranty OVERVIEW The RAM-B-201U products consist of a double socket arm that accommodates 1" B size ball bases, device holders, and adapters. This is the standard RAM® double socket arm size. The easy-to-adjust knob allows for near-infinite adjustability for your connected device. Overall Length: 3.73" SOCKET-TO-SOCKET LENGTH 3" BALL SIZE B Size (1") WEIGHT CAPACITY Standard Use: 2 lbsHeavy-Duty Use: 1 lb MATERIALS Marine-grade aluminum PACKAGING TYPE Poly Bag WEIGHT 0.31 lbs