How to mark cards
If you know how to mark cards by hand, it is very convenient for you.
How to make a marked deck of cards? The invisible ink to mark cards is very crucial. You can use these invisible ink to make plastic cards or paper poker cards. Write the marks you want on the back of playing cards, you will get marked decks at once. But you need to use marked cards glasses to detect its invisible ink marks.
The marked decks are marking with invisible ink was finished completely.