Mental Envelopes

The magician shows three envelopes with different colored stickers (red, yellow and blue), and asks a spectator to insert three cards (red, yellow and blue) into the three envelopes one by one, but each card can't be inserted into the same colored envelope. The magician turns around and after the spectator finishes, the magician will perfectly guess which envelope each card is in!

Comes with all items you need and video instruction.