RAM Mount 2" x 1.7" Base w/AMPs Hole Pattern & 1.5" Ball [RAM-347U]
ELC-48194RAM 2" x 1.7" Base w/AMPs Hole Pattern
The powder coated marine grade aluminum base consists of a 1.5" diameter rubber ball connected at right angles to a 2" x 1.7" square base. The base has four pre-drilled holes at each corner, making the universal AMPs hole pattern.
Material: 
Powder Coated Marine Grade Aluminum 
Ball Size: 
1.5" Rubber Ball Size 
Note: 
The "U" in the part number reflects product packaged in poly bag.