It's a simple replecement part for a TEUFEL-brand loudspeaker stand. The screw securing the bottom plate of mine broke years ago when my kid bumped it, and I finally got around to modelling the replacement.
There's some physical stress on this part, so probably best to print it in something like ABS or ASA and make it fairly dense.
Modelled in FreeCAD.
The author marked this model as their own original creation.