Website: thingiverse
Author: switchborg
Price: Free Download
File format: .Stl 3d printable
Description:
An easy-to-print fidget toy made of permanently nested rings that can tumble and shift around. Customizable (though it looks like the Customizer on Thingiverse is having some trouble with it right now, so you’ll have to render the files yourself).Two basic styles are available; the biconical style allows the rings to shift