This looks like the type of trick that might be found in mid-price Christmas crackers. The magician holds the tunnel horizontally and places the dice inside, asking the audience to remember the number of spots on top when the dice stops under the window on the tunnel. The magician then uses the blue handle to push the dice through to the other end of the tunnel. The surprise is that when the dice emerges from the other end there is a different number of spots on the top of the dice. Made in China. Complete with instructions.