Twist the bolt and watch it trace the zigzag groove, clicking back and forth inside a hexagonal nut. This 9.5cm mechanical fidget rewards every turn with rhythmic resistance you feel in your hands.
Each piece is one of a kind. Hexagonal bolt head anchors a spiral shaft, with a matching nut riding the ridged path. Every squeeze triggers a springy rebound, and arc-shaped patterns ripple as you turn it between your fingers.
Slide the hex nut along the zigzag shaft and feel the spiral groove track beneath your fingers. A bolt-and-nut assembly in unique colors that keeps restless hands busy.
Twist the zigzag column against the hexagonal base. The deep spiral shaft and thick rounded teeth create a distinctive mechanical motion that keeps restless hands busy while you think.
Sliding the nut along the zigzag threads creates a smooth, repeatable loop. This oversized mechanical fidget keeps restless hands busy with nothing but motion.