Overview: The magician shows a large brass bolt & nut. He asks for the loan of a ring, or offers one of his own for inspection. Showing his hands empty, he puts the ring underneath a hanky & moves the hanky over bolt & nut. Instantly he removes the hanky & the ring is on the bolt BETWEEN the nut & the closed end of the bolt! The nut is half-way along the bolt & it would take a lot of time to unscrew the nut, put the ring on then screw the nut back on the bolt. Yet the magician has done it in a flash! Specification:1 x Pack of magic screw props Weight Approx:10g Size Approx:4.5 x 3 x 11.5