The Jotto Desk Part 425-1188 is a 2-Piece Articulating Swing Arm that provides the critical link between the vertical tube & rod and the desktop.
The swing arm motion allows the desktop to be positioned on the driver's or passenger's side, or centered in front of the dash. The ratchet handles provide a quick, tool-less way to tighten the swing arm's position and will keep your electronic device from moving while the vehicle is in motion.
For the 3-Piece Articulating Arm Assembly 425-5273 Click Here