Luminous ink is an ink that can be invisible until it’s revealed by light or chemicals. It is used to mark playing cards with hidden marks that only someone wearing special glasses can see. This type of ink is also used to mark other things, such as secret messages or notes that can only be read by a person with the right kind of glasses.

Among the many poker cheating devices, luminous ink glasses are some of the most popular. These glasses are disguised as regular sunglasses to make them harder to detect. They are not noticeable to other players and can be worn at poker games or magic performances. The appearance of the luminous ink glasses is important, however. To ensure that they work properly, they should not be too shiny or bright.

There are several types of luminous ink glasses, but the most common is a red filter lens that will allow you to see invisible markings on the back of the cards. This version is available in all eye colors, and can be worn either by men or women. This card reader is great for those who wish to practice magic tricks or poker, but don’t want to draw attention to themselves.

Another option is a UV invisible ink reading glasses, which are similar to the luminous ink glasses, but do not have the need for a red filter. They are also easy to use and can be used by men or women of any eye color.

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