All kind of poker cards which are marked by invisible luminous ink is called marked cards.Card marking is often used to cheat when gambling or for card tricks. With naked eyes, nobody can notice the difference between the marked cards and unmarked cards.
Marked cards can be used regardless of who shuffles and deals the cards. With special luminous sunglasses lenses or invisible contact lenses, you can know each marked card like face up. You can make a wise decision to continue or quite during the poker game.
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