The RAM-201U-D, long double socket arm, has a socket at both ends that accommodates 1.5" ball bases.
A single spring inside the arm opens the end sockets, allowing you to pivot the ball and socket connection.
This socket technology allows for almost infinite adjustment and perfect viewing angles.
Socket-To-Socket Length: 8.75"
Powder Coated Marine Grade Aluminum
1.5" Rubber Ball Size
The "U" in the part number reflects product packaged in poly bag.