Stake & hoop for plants. Made this for my wife because she wanted one with the hoop in this upright orientation, and I couldn't find something else suitable.

At default scaling, the hoop measures 20cm on its inside diameter, and the stake is about 20cm high.

The pieces are a tight fit together on purpose (there's a .2mm difference in size between the hole in the hoop, and the size of the stake). If you have problems fitting, check your flow calibration.