XRay Deck by Rachel Colombini
A Spectator THINKS of ANY playing card. For reals....no forcing!!
You ask them to imagine a BIG BLACK "X" on the playing card they are thinking of. Once you take the deck of the box, you show their card, AND ONLY their card is the ONLY playing card with an "X" on it. You can show the fronts and backs of the rest of the deck! The black "X" is REALLY on their card.
No flipper cards, dental dams, thread or magnets (nothing to make like Shin Lim Arts and Crafts).
Simple and straight to the point. Comes in Bicycle