Best Magic PropsBolts and nuts, before or after the show, can be given out to the public for verification. They look like all ordinary bolts and nuts.Fav Party FavorsBest screw props for the party. magic as a board game for children and adults, satisfy your curiosity.No hands-on skillsRemove the bolt and nut and let the audience screw the nut onto the bolt.You can perform the trick in n any condition without practicing any skill.When it worksUltra-maximum energy is applied to the bolt, of course, you will see that the ball will start to spin, waiting to unscrew it completely to release it from the bolt. Screw PropsThis item is a screw prop for magic. It contains the gadgets and batteries inside. Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference , there will be some color difference, depending on the physical item received.