EZM Deluxe Add-On Pole with 1 7/8" Diameter (002-02PA) Compatible with our 002-0018/002-0024 Deluxe Dual Monitor Stands and our 002-002C Deluxe Single Head Kit to configure a "1 over 2" triple stand, or with our 002-0019/002-0020 Deluxe Triple Monitor Stands and our 002-002C Deluxe Single Head Kit to configure a "1 over 3" quad stand, or with our 002-0010/002-0033 Triple Monitor Standsand and our 002-002C Deluxe Single Head Kit to configure a "1 over 3" quad stand Works great with our Monitor Stands/Mounts with 1 7/8" diameter poles include 002-0010, 002-0018, 002-0019, 002-0020, 002-0023, 002-0030, 002-0033 and 002-0034 to make a taller pole for a sit-stand monitor stand/mount. The add-on pole Diameter is 1 7/8" and height is around 17 3/4" The total height of the pole after add-on is around 35 1/2" Item does not include the single head 002-002C, the base, arms nor the existing Deluxe Dual/Triple poles