This is a very ingenious spinning ring toy, which is an ideal stress-relieving gadget for almost any occasion. :)

If you find that the ring-shaped parts cannot rotate smoothly, you might want to try using the "loose tolerance" version.

If necessary, I can also upload the outer ring for you to replace it.

If you want to adjust the tolerances by yourself:

Through the PrusaSlicer software, go to Print Settings → Advanced Options, and you can find the XY Compensation function. Entering a positive value can reduce the gap between rings, while entering a negative value will increase the gap appropriately.
Please note that even a slight adjustment in the value can lead to significant changes. The gap between the original rings is 0.35mm. If you set the XY offset to 0.05, your gap will be reduced to just 0.25mm.