This is a pretty nice rotating rings toy which is perfect to use as a fidget toy in almost every situation. :)

If you are not able to get the rings rotating freely, you can use the "looser-tolerances" version.

If needed I can upload outer rings for replacement purposes.

If you want to change the tolerances yourself:

By using PrusaSlicer and going to print settings → advanced you can select the xy-compensation. By typing in a positive value, the gap between the rings will get smaller, by typing in a negative value, the gap will become bigger.
Keep in mind that even small inputs change a lot - the original version has gaps of 0.35mm inbetween the rings, so if you type in 0.05 as the xy-offset, your gap will be reduced to just 0.25.