Description:
There are some invisible marks in every piece of the back of card. And you can see what is the number of the cards at the back of marked cards clearly when wearing our special perspective glasses and UV contact lenses. It's suitable for all kinds of poker games, for example,Blackjack,Omaha poker, Texas hold em etc.
Use for:
Contact lenses
Perspective glassess
poker cheat
gamble cheat
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