Marked Dominos With Invisible Ink
Marked Domino is a kind of poker cheating device that can use to help on Domino card games, with infrared contact lenses, you can see the invisible ink marks on the back well.
Marked Domino can help you to perform any game trick better. By reading the mark on the back with luminous ink contact lenses, or other kinds of cards reader kit, you'll always know if your trick is going "as planned". You'll never be surprised by turning over a Domino card at the end of the trick, because you will know the outcome when you plan to play these marking Domino.