The magician puts two cards aside on the table. Other two cards are chosen from the audience and they will have the back identical to the ones of the magician. Turning them on the face, they will perfectly turn out identical of value and colour to the ones of the magician. To finish, the deck is shown face up and you will see that all the cards are red and identical: while the chosen cards are the only ones of black colour!
Easy to do and of high impact.
The cards, bridge size, are laminated and of a good quality.