You receive 12 cards and a marker and that will be enough for you to make real mentions of mentalism that is both funny and surprising. Without ever turning the QR cards,The spectator will be able to guess which have a positive symbol (+) and which have a negative symbol (-)!Everything is in front of the spectators, you never have anything to hide or add, your gestures are natural! This tour is perfectly suited to passionate beginners as well as professionals! Simply using his intuition, your audience does not only manage without looking at the back, to separate the + of the -, but also, to find the only negative symbol among 12 cards.Of course everything is under the control of the mentalist magician. Your presentation is completely free as the possibilities are multiple: Love Test (compatibility test of the latest fashion application), school test (admitted / not accepted), medical test (blood group, COVVI, etc.), Opinion on social networks or for a restaurant (positive or negative), etc. The ingenious method is simple and effective, everything is included so that you can quickly take your hand and make one of your classics. The theme of QRs and therefore the original support that Youtest offers you will surely ensure the laughter and attention of your audience and will allow you to vary your effects in your repertoire. Trick Features : Easy to do The method is evil Fast reset you will get 12 cards and instruction video. Please note a close up mat or a cloth surface is required to perform this trick.