Check the listing for details. RAM-230U RAM Double Ball Adapter - C Size.... Color: Black, Condition: New. Listed at 34.44 USD. RAM Double Ball Adapter - C Size... RAM-230U Genuine RAM Products! The RAM double socket connector allows you to connect two socket arms together and maintain a flexible mount.product dimensions Overall Length: 3.74 INCHES socket to socket length 2.38 INCHES ball size C Size (1.5 INCHES )weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbsmaterials Marine-grade aluminumpackaging type Poly BagWeight 0.25 lb FEATURES The perfect adapter for connecting two C size RAM Mounts double socket arms for extra extension or articulation Consists of two C size 1.5 INCHES RAM rubber balls with a socket-to-socket length of 2.38 INCHES Post is 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: 3.74 INCHES socket to socket length 2.38 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 0.25 lb