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Performer shows five solid wooden disks painted in five different colors. Also a wooden cylindrical container with lid just large enough to hold the disks. Both disks and the container have a hole in them, for passing an aluminum pipe.
A spectator may select any disk. There is no force.
Disks are placed into the container which is capped. An aluminum pipe is passed through the holes in the disks and the container. A spectator is asked to hold the ends of the pipe with the container hanging in the middle.
Performer opens the two halves of the container. One disk falls off and it is the disk with the selected color. The other four disks and both halves of the tube are securely threaded on the pipe. And everything can be thoroughly examined by the audience.