I have a Meade Starfinder Dobsonian base for sale. Included are the teflon bearings, which attach to either side of the tube. The base went with a 12.5" OTA (15.1" od). This item is brand new, and still in its box. I bought the Dobsonian only for the OTA, so I don't need the base. Note that the image shows the OTA, also, but the OTA is not included.