Have you used this kind of perspective sunglasses for poker cheating in casino? Perspective sunglasses are very useful as poker cheating device. It can be used to read the infrared luminous ink markings on the back of marked playing cards clearly and accurately. Lots of professional poker players use these magic sunglasses in casino in order to avoid being cheated by other players. This IR glasses are specially designed to read the invisible ink marked cards that are printed with invisible marks on back. The appearance of our perspective sunglasses is the same as regular sunglasses. Hence you needn’t worry about that this untold poker secret of glasses will be found by others.