A large painted wooden cube threaded onto a length of cord is shown to move freely back and forth along the cord. But whenever the magician wishes the cube can be made to stop at any point along the cord and remains suspended challenging the laws of gravity!
Even a spectator can command the cube to stop if the performer allows it to do so. But when everything is handed to the spectators to try and duplicate the feat no one will succeed unless they know the clever secret.
The cube measures two inches per side and the six surfaces are each painted with a different attractive color.