Marked Cards Contact Lenses For Mahjong
Just like the luminous marked cards, the mahjong also can be marked with lumious ink on back. So invisible contact lens is good product to play mahjong gambling game. And the mahjong tiles we have process normally mahjong with invisible ink that you can know that they are with a pair of infrared contact lenses. It is very useful for people to cheat at mahjong game.
This invisible ink mahjong sells a lot. We know that Asian like to play mahjong game and they also want to buy a useful mahjong cheating product to help them in the mahjong game. The invisible ink mahjong is made by special and good invisible ink. No one we will find them at all because other players will not see anything with their naked eyes. Invisible ink mahjong is used for cheat at mahjong games. And it works with contact lenses.
Invisible ink mahjong is different, but the using the theory is similar to the marked cards. And you also need to wear a pair of contact lenses or special sunglasses to see these marked cards.