How to mark cards with an invisible luminous pen? How to use invisible ink and glasses see through luminous ink marks? How to wear contact lenses that read invisible ink marked cards? All of these questions could be found in China GS playing cards cheating devices suppliers.
As for marking cards with invisible ink at home, you can choose the best invisible luminous pen with cards marking ink and high quality playing poker from GS suppliers. And then, write every suit and numbers you like back poker decks. After 3 seconds, the ink is dry and you can use these magic luminous marked cards.
Buy contact lenses marked cards or invisible ink sunglasses from GS, and these marked cards readers will help you see through your own luminous marked cards.