The RAM-D-202U consists of a 2.25" diameter rubber ball, connected at right angles to a 3.68" diameter round base. The base has pre-drilled holes, including two holes at 180 degrees and three holes at 120 degrees.
RAM® Double Socket Arm with RAM® Pin-Lock™ Security Nut
RAM® Double Socket Arm
RAM® Double Socket Arm with Jam Nut
RAM® Horizontal Swivel Mount with Socket Arm
RAM® Vertical Swivel Mount with Socket Arm
RAM® Horizontal Swing Arm Mount with Single Socket Arm