The powder coated marine grade Aluminum base consists of a 2.25" diameter rubber ball, connected at right angles to a 3.68" diameter round base. The base has pre-drilled holes, including two holes at 180 degrees and three holes at 120 degrees.
Material: Powder Coated Marine Grade Aluminum
Ball Size: 2.25" Rubber Ball "D" Size
Manufacturer Part Number:RAM-D-202U