This is a decorative pipe flange (escutcheon plate) that fits around a water or drain pipe and conceals the larger diameter hole it goes into.
It prints in two parts that fit together for a clean look. Note that the connection is not designed for repeated use and will wear out. (This is not a good fidget toy.)
I've uploaded several sizes, and can easily make others if needed (just message me).
Happy flangeing!
The author marked this model as their own original creation.