PLEASE NOTE that with the Jumbo Sized version you don't use two full decks, as that would make the handling very awkward. Instead, you use 2 groups of 10 cards each, one red backed and the other blue. The rest of the routine is the same as with the poker sized cards. They can easily be seen by much larger groups than the Poker size decks. MCCombical deck by Billy McComb This is a fun filled and laugh packed routine that takes everyone along hook, line , and sinker. It works well for audiences of every kind and is very easy to do so you can really focus on the laughs! The performer predicts a card by removing it from a red pack of cards and placing it in plain view of the audience. The spectator, seated behind the performer, now must select a card from an entirely different pack - hopefully matching the prediction card. The audience can see that the 2nd pack where the spectator must select their card consists of all duplicates of the prediction card which has been in full view. The spectator is asked to say 'STOP' as the magician moves the cards one at a time from the top to the bottom of the deck. On the word 'STOP' that card is given to the spectator. The audience is laughing as they can see the prediction and that all the cards in the second deck were the same as the prediction. The spectator calls out the name of the card which they selected and the audience is shocked to hear that the selected card is NOT the same as the prediction! The performer picks up the predicted card and places it beside the chosen card. The two cards are turned over they are EXACT duplicates! Hilarious card routine! A real crowd pleaser! Available in several sizes and made by several manufacturers. Chose when placing your order: Poker Bicycle - You get two decks in your set, of standard Poker size (about 2.5" x 3.5") Bridge Fox Lake - Made with Fox Lake cards by Haines House of Cards Bridge Royal - Made in Chicago by Royal Magic, using Royal Back cards Jumbo Bicycle come in "Big Box" card stock. The decks are about 4.5" x 7" Jumbo from Royal Magic - Made using Royal Back JUMBO cards, not Bicycle, about 4.5" x 7"