Make contact lenses marked cards
How to mark cards? If you want to mark cards poker at home, you can use cards marking ink. But you need to use high quality playing cards invisible ink and then filled in pen for writing luminous ink markings back poker. There has the other way is that marking cards with invisible ink by marked cards printer. Marked cards manufacturer produce luminous marked cards are printed by this high technology machine.
How to read marked cards? Marked cards contact lenses will assist you seeing through marked cards, so that you can detect whether this is the high quality marked cards or bad marked cards. Infrared glasses also have the same function as marked cards contact lenses.