When saying marked cards, we usually refer to the playing cards with invisible ink marks.
Here in our company, the marked playing cards are processed from the normal clean playing cards with invisible ink. We have marked cards with luminous ink marks on the back for infrared contact lenses and also barcode marked cards to work with poker analyzer. Also there are different colors of ink for sale.
Marked cards is such a useful poker device, nowadays still knowing by few people. Actually, when playing poker tricks, almost all the magicians will use marked cards, so if you also want to play poker tricks, you had better have a try on our products.
You can buy marked cards from us directly, or you can buy the invisible ink to try marking poker cards by yourself if you have interest.