pnob
You are supplied with a bolt and but. The top of the bolt pops off when you pull on it revealing a small battery. We have already placed a battery inside to get you started!
In your package is the secret magnet that you conceal under a finger ring of your choice. Use the flesh coloured tape to hide it or attach it to your hand.
When you screw the nut on the bolt and then hold it near your secret magnet the bolt then starts to unwind by MAGIC!
It is up to you to present this with great showmanship - remembering you can hand out the nut and bolt as there is nothing to see. It really does look like psychic mind power magic!