The effect: You can ask the spectator to choose a card using this pen, which you have of course predicted and that you will show at the end of the tower. The spectator can fix the order of the ESP cards by chance, which corresponds to the order engraved on the pen! A prediction may seem false at first glance … but the ink is volatilized in contact with heat, which gives reason to the prediction! An excellent little gadget in itself, but you can combine e-s-pen with other mental towers, such as ESP cards, which increases the power of the effect! You receive : The personalized pen Swedish pocket A set of 5 corresponding esp bicycle cards