Luminous ink marked Mahjong tiles

As a leading marked cards kit manufacturer in China, we not only can provide best marked cards device, but also have the luminous ink marked Mahjong tiles for sale.
To make the luminous ink marked Mahjong tiles, we usually mark ordinary Mahjong tiles with specialized invisible ink on one, two or three sides. There is no chromatic aberration between the original Mahjong tiles and the marked ones. Those markings on the Mahjong are invisible to human naked eyes and they can only be seen by wearing our luminous ink contact lenses that can see invisible ink or perspective luminous ink sunglasses, both of which are also available from our company.
Usually we will mark the number or point accordance with the facade patterns, if you have special requirement, please feel free to contact us to order.