This is a precision mechanical prop with extremely sturdy mechanics that will guide you to perform this mystery trick with ease.
You can hand the bolt and the nut to spectators without switching out anything. No angle restriction, no switch out, no need to reset, immediately examinable. Nothing to hide in your hands. No complicated body hook ups.
Amazing mentalist performance close up moving nut bolt magic trick ready to use, any place, any time and can be immediately repeated as many times as you want. Fully examinable before and after the effect. Easy battery replacement.