Spiral Helix Sensory Fidget Keychain

A spiral fidget keychain to 3D print: something to rub, roll and trace with your thumb while you think, clipped to your keys or a bag. Ridges spiral from one end to the other, so your thumb can follow the twist around the bar. The texture runs all the way around, so it feels the same whichever way it sits in your hand. The cap at the top has a hole for a standard split ring. What you get: 2 files, the keychain as a 3MF and an STL. It is a single part and prints standing up in one piece, with no…

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