RAM® Double Ball Mount with Round AMPS Plate and Large Round Plate (RAM-D-101-C-254U)
RAM® Ball Base with 1.5" x 4.5" 4-Hole Pattern (RAM-D-202U-25)
RAM Medium Length Socket Arm for D Size 2.25" Balls (RAM-D-201U)
RAM 3.68" Dia Round Plate with 2.25" Ball (RAM-D-202U)
RAM 3" x 11" Rectangle Plate 2.25" Ball (RAM-D-111BU)