SHIPPING IS ALWAYS FREE!
Your spectator picks a card from the deck. The chosen card is placed into the card case with its face down. The card box flap is left open so that the faced down card is clearly seen inside. The case is simply dropped onto the table and, in the blink of an eye, the back of the card and the entire card box changes color- no covering whatsoever! Then suddenly, the color of the entire deck changes color as well!
Boxing Match 2.0 is an updated version!
Instruction is provided on a video accessed by a QR code supplied.