A marked deck where the magician can tell the identity of every card from the back is one of the most useful card decks ... This bicycle design marked deck is one of the easiest to read but highly deceptive. No code no symbol to interpret, and no marking system to learn, use deck this deck and hand it out without feat of detection..... Instant location and direct reading of the marked we have these available in read back bicycle design. There are not bicycle cards, but on identical design, modified for the marking. Comes with 1 bonus double back red and blue card added for multipurpose effect..... Description. Here we have a professional deck of marked red back playing cards from. There are for entertainment use only. The professional magician and this is the best marked deck out there. They are made of the highest as bicycle always does....