Visual card change effect, even you have no card techniques.Color changing in gradual way.You can finish this trick by a normal poker size playingcards.Amaze everyone with this very visual magic effect.Size: 9x7cm/3.54"x2.75" How to make this amazing magic:Magician asks a spectator to draw a card freely(no force),and sign it.Then put the card back into the deck, and shuffles the cards.The magician shows one card on the top of the deck, but it isnot the same card the spectator signed.Put the card into a clear plastic sleeve, the spectators cansee the face of the card is still not the signed card.The magician holds the sleeve, then the card slowly andvisibly changes into the signed one!!The card can be removed from the sleeve by spectator andthere is nothing else in the sleeve!!Anytime when spectators saw this trick, they would sound thesame word Play card not included (normal play card or any paper can be used)