Invisible ink and glasses to read the ink

Invisible ink and glasses to read the ink is good poker cheat devices in marked playing cards fields.
Our luminous ink eye glasses that can see through playing cards clearly and accurately while you using juice marked cards in poker games. What is more, you can use marking cards gambling glasses to detect invisible ink for playing cards whether other player cheat with marked cards poker.
How to purchase invisible ink glasses? If you are interesting, please contact us at any time.