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The RAM-B-202U consists of a 1" diameter rubber ball connected to a flat 2.5" diameter base. This mount has pre-drilled holes, including the universal AMPS hole pattern.Material: Powder Coated Marine Grade Aluminum
Ball Size: 1" Rubber Ball "B" Size
Note: The "U" in the part number reflects product packaged in poly bag.
The RAM-B-202U will attach to any RAM composite cradle; however, the RAM-B-238U is most commonly used.