perspective contact lenses for marked card cheating poker prop natural light
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This kind of contact lens can cheat in poker. When you wear our contact lens, you can see the invisible marks on the back of ordinary playing cards. Our contact lens is made of high-quality materials from HEMA, which is harmless to human eyes and comfortable to wear.
Put this marked cards on the table, then wearing the contact lenses or perspective glasses, that you can see the marked pattern very clearly.