Card Trick Effect: Show both the cards and openly place one card behind your back. Ask the spectator what card is in your hand. No matter what the spectator chooses he (or she) is always WRONG. Can be used as a bar bet to get FREE DRINKS. Very easy to perform. Ages 6 and up. Can carry with you anywhere in your wallet making it a fun trick at all times. Cards are Bicycle cards so they don't look like trick cards. Recommended for ages 6 and up.