The bolt itself contains internal organs and cells.
Take the bolt and nut out and let the audience screw the nut onto the bolt.
Ultra energy is applied to the bolt. Obviously, you'll see the nut began to spin up until it completely unscrews to come off the bolt.
Bolts and nuts, before or after a performance can be handed over to the audience to check.
Color: As pictures show
1 × Magic Rotating Nut Bolt Screw
2 × Button Cells
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