Bicycle Gaff Index (Gimmicks and Online Instructions)

back before you start. Then the spectator chooses a card that does not match your prediction. You then take your prediction card and insert it into the deck, leaving it sticking out. Then the card will visually change into the spectator's chosen card. You can then give the card to the spectator to examine.
4 in 1: You have your audience freely select four cards and then reveal that they are exactly the four 4's in the deck (spades, hearts, clubs and diamonds). You then take a special card that has a different back and a blank face and place it on top of the four cards. After a few seconds, the card is printed and the four indexes of the 4s appear.
56 cards (Bicycle Rider back) printed by US Playing Cards Company
An assortment of Index Gaff Cards
15 Routines explained
Instructional video included (1h40) in English and in French