The RAM-202CNSU consists of a 1.5" diameter rubber ball connected to a flat 2.5" diameter base with 3/8"-16 female threaded hole. This mount has pre-drilled holes, including the universal AMPS hole pattern.
Material: Powder Coated Marine Grade Aluminum
Ball Size: 1.5" Rubber Ball Size
Note: Part number reflects product packaged in clear clam shell for store shelf display.