Toddler Friendly Fidget Toy

This is a simple nut and bolt design that is appropriate for young ones to play with. Spinning the nut on and off the bolt is oddly appealing to adults too. If the design is printed at its default size it should be large enough that little ones will be unable to swallow it. Size yours appropriately if you have doubts.

The model is “print-in-place” and requires only a minimum of force to loosen the nut the first time. The thread tolerances have been adjusted so that the nut should spin freely.