This is another fidget thing. 

It uses 5 magnets with 2 mm height and 10mm diameter that you can get cheap from Amazon.

Printed in 0.2 mm layers and a pause at 3.6 mm. 

Take care of the correct orientation when putting in the magnets. Do not mark the magnets when using transparent filament. I f***ed mine up by doing exactly that… 

Need a bit of practice though.