The magician shows 4 aces, one for each suit (clubs, hearts, spades, and diamonds). The value of the cards shown may be different but the effect is the same. One at a time each card turns face down showing each individually blue back. There is a surprise finish when all the cards change to mirrors.
A great card effect that your audience will remember. You show four playing cards, for example; Ace of Hearts, Ace of Spades, Ace of Clubs and Ace of Diamonds. You square them up and with a twist of the cards, one turns upside down! This is repeated one-by-one with each card turning over. In the end, you have a surprise finished where all the cards change to mirrors.