Boxing Match 2.0 by Katsuya MasudaOne of the audience picks a card from a deck. Put the chosen card in a card case with its face down, and strike the case on the table. In a second, the color of the card's back and the case changes. The color of other cards also changes. Features: Boxing Match has been updated! Adding a story, the whole performance has become more visually appealing phenomenon. Instruction is provided through a video. You can watch the explanation video by scanning