This oversized novelty bolt shows off a zigzag threading pattern that makes the matching nut travel along the shaft, creating a smooth, repeatable loop. The two-tiered hexagonal base carries thin accent bands around the bolt head and nut, and the exaggerated spiral threads give the piece plenty of visual interest. The nut glides freely in both directions without catching or binding.

At 9.5cm it sits on your desk and needs no batteries or app, just a mechanical cycle you can repeat whenever your hands want something to do.

Slip it into a bag and let someone else experience the motion for themselves.