Check the listing for details. RAM-201U-D RAM Double Socket Arm - C Size Long.... Color: Black, Condition: New. Listed at 57.94 USD. RAM Double Socket Arm - C Size Long... RAM-201U-D Genuine RAM Products! The RAM-201U-D consists of a long double socket arm that accommodates 1.5 INCHES C size ball bases, device holders, and adapters. With an overall length of 9.125 INCHES , this is the longest C size RAM double socket arm size and adds more reach to your favorite mounting solution. The easy to adjust knob allows for near-infinite adjustability.product dimensions Overall Length: 9.125 INCHES socket to socket length 8 INCHES ball size C Size (1.5 INCHES )weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbsmaterials Marine-grade aluminumpackaging type Poly BagWeight 1.64 lb FEATURES Provides an extended reach with an overall length of 9.125 INCHES and a socket-to-socket length of 8 INCHES Attaches to any C 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 product dimensions Overall Length: 9.125 INCHES socket to socket length 8 INCHES ball size C Size (1.5 INCHES ) weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbs materials Marine-grade aluminum packaging type Poly Bag Weight 1.64 lb