The RAM-D-254U consists of a 2.25" diameter rubber ball, connected at right angles to a 2.4375" diameter round plate. The plate has pre-drilled holes in the base plate, including two holes at 180 degrees.
Material: Powder Coated Marine Grade Aluminum
Ball Size: 2.25" Rubber Ball "D" Size
Note: The "U" in the part number reflects product packaged in poly bag.