This is a adapter to go on the end of a broom or stick to turn the ventilation knob of a RV/trailer, so you don't have to climb on stuff to open the hatch.

I made this to go on a specific broom, but I have included the fusion file (.f3d) if you want to change some aspects of it. I also just used a random screw to make sure the thing didn't rotate on the end of the broom when trying to turn the knob.

Side note: I scaled it up about 3% in my slicer to give it a looser fit.