Rotating 4 rings toy Fidget Sphere different patterns

I wanted to strech my knowledge of the 3D design software and I always like a nice fidget. Especially a fidget which suites 3D printing very well. These sphere can easily be printed without supports. After printing it needs a bit of motivation to make the rings go smooth. But this also has to do with optimal printing setting. Please print the STL in flat position. In the download there are four versions. I especially lyke the tyre print. Every ring has it own unique print. Hope you like it as well. I like the result very much, so do my kids and one of the benefits it is silent when being used…;-) If you like it and printed it please share! I am open for any remarks or improvements.