Rule of Three | Jon Allen Adam The Number 4 Envelope measures

The Number 4 Envelope measures 3" by 4" and is extremely flat

can be carried with you at all times

1 x Double index card (Queen of Hearts/Queen of Diamonds)

000 sets in circulation and many top pros use it as part of their shows

Michael has used and refined his design of the Topit

Rule of Three | Jon Allen Adam The Number 4 Envelope measuresFrom the creative mind behind Flexion, Double Back, The Destination Box, The Silent Treatment and more, Jon Allen brings you an incredible new effect: Rule of Three . After naming the QH & AS as the two most popular cards, you ask someone to name a third card. A prediction shows you knew the card they would name! While all the other cards have different numbers on their back up to 52, the QH & AS have #1 and #2 on their back and the named card has #3.