The RAM-240U consists of a 1.5" diameter rubber ball connected to a flat 3.68" diameter base. This base has a pre-drilled 3-hole 120 degree pattern that connects to RAM Tough-Dock™ Powered Docking Stations.
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.