There are some marks in every piece of the backside of domino.  And you can see the clearly when wearing  IR contact lenses.it's suitable for all kinds of poker games, for example,Blackjack,bacarrat ,Omaha poker, Texas holdem poker etc.

Use for:

IR contact lenses

invisbile glassess

poker cheat

gamble cheat

Other Modles:

brazil domino cheat

iraq domino cheat

turkey domino cheat

usa domino cheat