You take out a Bicycle blue deck from your wallet or deck case. The performer, without hiding the deck with their hands, concentrates, and... ...the color slowly changes right in front of the spectator's eyes, as if the ink is bleeding! Has there ever been a color change that clearly shows the moment of the change to the audience, without any sleight of hand or hiding? Just by keeping one card in your wallet, you can easily surprise and break the ice. <Set Contents> ・Bicycle-compatible gimmick As for the performance, it's better to have the audience stand beside you rather than facing you, so you can see it together, which is the best way to do it. ※ Unlike other magic tricks, this is affected by the environment, so it's not guaranteed to be 100% successful. However, the effect itself is rare, so even if it doesn't go perfectly, it's sure to be a hit, so you shouldn't miss performing this magic trick.