Get a coin, close the card box, hold the box in full view and then throw a coin right through the box. Show the box front, back and from the inside. No duplicate coin used. Detailed instructions shot in close-up HD.

This is a utility device that allows you to: - Throw a coin into the box - Use it as a hold-out - Switch billets - Show the box empty, then produce something from it - Use it as a prediction chamber - Infinite ideas