RAM® Ball Adapter with AMPS Plate

The RAM-B-347U base consists of a B size 1" diameter rubber ball connected to a 2" x 1.7" square base. The base has four pre-drilled holes at each corner, using the universal AMPS hole pattern.Included B size 1" RAM® rubber ball allows for connection to any B size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability.Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments.