Stripper (blue) by Copag 310
A Stripper deck also known as a tapered deck allows you to control the main location of a card or a group of cards easily within the pack. Even after being shuffled by a spectator, you can cut to a selected card or move multiple cards to specific locations using basic shuffles. The cards of a stripper deck are slightly tapered, so that the sides no longer form a perfect rectangle. The change is slight enough to be undetected by visual inspection or even casual handling. Many of the effects achieved with a stripper deck can also be accomplished with sleight of hand.