A Thread & Nut That Goes In Two Directions At Once? — SPINFINITY Fidget Spinner From Exceed Designs! Media

This bi-directional threaded bolt takes 4 hours to make on a precise 3D printer. Each layer creates a special bolt that can be threaded in both directions. The SPINFINITY fidget toy allows the user to spin either of the bolds in either direction while holding one side. The 5-Piece structure is held together with real knife-pivot bearings and spins effortlessly and infinitely! Get one for only $20 bucks on our website at https://exceeddesigns.com/shop