How to distinguish the luminous ink markings of marked poker cards? Here we can offer you the best useful product, infrared contact lenses, which especially invented for invisible ink. IR contact lenses can be used to see the luminous invisible ink markings on the back of marked playing cards which can’t be read by our naked eyes. It is comfortable for us to wear because we adopt softest and eco-friendly material. What’s more, the invisible ink contact lenses have different colors and sizes. If you want to enjoy poker game with magic IR contact lenses, or any other poker cheating devices like poker scanning camera, poker analyzer, please do feel free to contact with us for more details.