This is the original style pole for the MDM10- and GSA10- series monitor arm stands, the base (sitting on desk-top) and the pole was welded together. While with the new style model, the pole are the base are separate parts which can be screws together, see image below:
This pole is compatible with MDM11S, MDM12D/Q,, GSA12S GSA12D GSA13SW, GSA13DW
The diameter of the pole is 35mm (1.38″).
The included Desk Clamp is heavy duty and allows you to mount the pole onto a desk or table.
You can also mount the pole directly to wall (making the desk clamp redundant), please wall fixings are NOT included.
Notes: these pole modules will not work for the MDM0X series (MDM01, MDM04, MDM05, MDM06, MDM07, MDM0D) desk mount monitor bracket.