Prop ring adapter for TGS 6x4e props.
If like me you lose the adapters after not needing them in the first place.
This will shrink the inner diameter to fit a 5mm prop shaft.
Tested with Sunnysky 2204 motors.
This thing was made with Tinkercad.
Edit it online https://www.tinkercad.com/things/gdGjiiEg33d