The magician displays ten small plastic tiles. They are numbered from one to zero with the numbers face down in a row. While the performer turns his back, the spectator places any number of tiles from one side of the tiles to the other side. When the performer turns back, he is immediately points to a tile, turns it over to show the exact number on it that the spectator moved. This could be repeated as many times as the spectator wants it. Includes instructions. Very good condition.