IR or UV marked cards are not any secret nowadays. They are usually used in magic shows and poker games. And many people know how to detect these marked cards with infrared contact lenses, special fil...

Some customers tell me that the marked cards for contact lenses and sunglasses to see is known to many people now so they are looking for new products with new technology. In fact, in addition to the...

Many players like to use marked cards and the invisible ink reader in poker games so as to protect themselves from losing. Though want to enjoy the poker time with special devices, people may always w...