Inidan Moghul 808 marked cards|invisible ink|poker cheat can made invisible ink on it, can see number and suit of the marked cards. Description: There are some marks in every piece of the back of marked cards. And you can see the poker clearly when wearing uv contact lenses..it's suitable for all kinds of poker games, for example,Blackjack,Omaha poker, Texas poker etc. Use for: Contact lens Perspective glassess Othe model: Hoyle Lancer NO.772 Paris Rado Opel Crient 714