The Jotto Desk 425-5186 Writing Top is 12" x 13" and attaches to the Articulating Swing Arm or Straight Arm assembly depending on your Jotto Desk set up.
The writing top gives you a smooth surface to write on with the same reach and functionality of your standard Jotto Desk Desktops. Some customers choose to add this option to their Laptop or Tablet Mount in order to have a versatile work environment in the vehicle.