RAM Mounts Large Round Plate with Ball RAM-D-202U with D Size 2.25" Ball
The RAM-D-202U 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".