For recent years, there are more and more people playing domino games. If you are one of them who are fond of playing domino and looking for the best domino cheating device, we believe that we can help you a lot. Our luminous ink marked dominoes are of great use for you to win games. They are printed with invisible ink marks on the back, and these infrared marks cannot be seen by people’s naked eyes. In order to see the marks on back of luminous ink marked dominos, you have to wear our special contact lenses which processed by our professional technicians. Using this invisible ink marked domino and contact lenses is about to increase your possibility of winning in domino games. There are luminous ink double 6 dominoes and double 9 dominoes selling in our company. Also you can sent your domino to us for marking procession.