the magician's greatest secret - with these marked cards you can perform a host of magic tricks and make sure you always win when playing cards. Amazing, right?

Copag EPT plastic marked cards,there are some invisible ink marks in every piece of the back of card. and you can see the marked cards clearly when wearing perspective glasses or contact lenses. 
It's suitable for all kinds of poker games, such as Omaha poker, Texas hold em,report one by one and etc.

It is the easiest poker cheating device for all poker players,especially for the new user,it is not need any skills,you only need to know how to wear the contact lensesand with the marked cards,you could win the poker game easily and not so easy to find by others.