The RAM-347U consists of a 1.5" diameter rubber ball connected at right angles to a 2" x 1.7" rectangle 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.