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Bicycle paper cards was produced in USA. Guangzhou XF poker cheat co.,Ltd can marked it with invisible ink. So people can see the marking on backside of marked cards when they wearing contact lenses.
There are some mark on the backside of the cards,you can see the number and suit when you wear our contact lenses.
Used for:
gamble cheat
party gambling
private casino
poker cheat
Related info:
Bee marked cards,Bicycle marked cards,Kem marked cards,
copag marked cards,Modiano marked cards,Indian marked cards
XF USA Bicycle paper makred cards for contact lenses
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