RAM Diamond Ball Base is a mounting component composed of either a 1in B-Size rubber ball or C-Size 1.5in connected to a 2.43in x 1.31in diamond plate. It has pre-drilled holes following the universal AMPS hole pattern. The diamond plate displays two holes, 1.912in from center to center, complementing the industry-standard AMPS hole pattern. This base is compatible with several RAM® holders and cradles, with ball and socket technology allowing for near-infinite adjustability. It connects to B-Size socket arms for B-Size ball mounts and C-Size socket arms for C-Size ball mounts. Manufactured from powder-coated, marine-grade aluminum, it offers durability and reliability and is backed by a lifetime warranty. It has a weight capacity of 2 lbs for standard use and 1 lb for heavy-duty use.