Introduction: MeredIian-Parksons-555-marked-cards can work with contact lens,perspective glassess and so on.You can see all number and suit through these. There are some marks in every piece of the back of poker card. And you can see the poker clearly when wearing perspective glass. It's suitable for all kinds of poker games, for example, Blackjack, Omaha poker, Texas poker etc. Used for: Contact lens Perspective glassess Other Modles: 555 Red 555 Blue