Instant purchase welcome!! Tonight only SALE in progress! Applicable to everything I'm selling! * Buy 2 items, get 500 yen off * Buy 3 items, get 1000 yen off * Buy 4 or more items, get a maximum of 1000 yen off! Please take advantage of this opportunity! 【Effect】 The magician shows four blue cards. Then, he shows that all four cards are blank on the face. The magician says, "If all four are white, you can't tell which card is which," and casts a spell, and one card changes into a Joker. He places the Joker face up in the middle of the four cards, but then the Joker changes into a blank card. When he casts the spell again, it turns back into a Joker. The magician says, "When you can't tell the difference between a Joker and a blank card, you do this," and casts a spell, and only the Joker's back changes to a red card. Finally, the magician hands all the cards to the audience to check for any gimmicks, and the performance ends. 【Product Contents】 * Set of cards (packet trick) * Japanese instruction manual ※ Recommended for those who want to learn the technique!! ※ The ultimate packet trick that can be fully examined at the end Thank you!