Infrared contact lenses for invisible marked dominoes

Marked dominoes with luminous ink like invisible ink glasses poker, we need to use infrared contact lenses that can read invisible ink marks.
No matter what kind of material and which brand, we can mark for you according to your requirement. It needs a series of specific processing steps to make invisible ink marked dominoes.
Marked dominoes work with infrared contact lenses or marked playing cards with glasses. Without these marked cards reader, no one can read invisible ink to the marked dominoes.