You show two sets of different colored cards with Christmas pictures. The spectator selects one of the sets and you shuffle it. The cards of both sets are then dealt face up into two piles to show that all ten of the cards in each set have a different picture on them. However, because one set has been shuffled, the order of the cards in each set is completely different. The spectator again chooses one of the piles and you mix the cards as per the instructions of the spectator. When the cards from both sets are dealt face-up this time, the cards have arranged themselves into matching pairs of Christmas pictures. Instant reset & completely examinable! Comes complete with 20 full color cards (10 red back and 10 green back) and instruction sheet.