Two empty tubes are shown. One is handed to a spectator and the other is held by the performer.A different color crayon is placed in each tube and the spectator is instructed to follow the magicians moves exactly. The tubes are inverted and each time the performers crayon is shown to be right side up and the spectators crayon is upside down! He can't get it right. As a kicker the magician can now make the crayons change tubes. There's more! The magician can make the crayon go form upside down to right side up WITHOUT inverting the tube. A must for childrens entertainers.