The RAM-D-201U-E powder coated marine grade aluminum LONG double socket arm allows for connnection to a 2.25" diameter ball. Socket technology allows for almost infinite adjustment and perfect viewing angles. 

Dimensions:
Overall Length: 12.875"
Socket-To-Socket Length: 11.1875"

Material: 
Powder Coated Marine Grade Aluminum 

Ball Size: 
2.25" Rubber Ball "D" Size 

Note: 
The "U" in the part number reflects product packaged in poly bag.