The RAM-B-103U-A consists of a 2.5" round base and SHORT double socket arm that will accept 1" ball bases. The round base contains pre-drilled holes, including the universal AMPS hole pattern. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at both ends of the socket arm; this with a twist of the arm knob allows for you to maneuver the mount to your optimum viewing position. 

Dimensions: 
Overall Length: 3"

Material:  
Powder Coated Marine Grade Aluminum 

Ball Size:
1" Rubber "B" Ball Size 

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