They're manipulation cards with flesh colored backs. Never tried them personally, but I hear they're excellent for stage performances when you need to do card palming, productions, etc.
I just opened them and I was turned off at first cause their so thin and flexible but I really like them now. There not as wide as regular cards which will make the Cobra cut that much easier and they practically disappear in your hand when palming them. I'm going to have fun with these. I guess from the number of responses I have gotten back that not alot of people use the cards. huh. There pricey about 15.00 a deck so I can understand that.
These are GREAT!!!! I have 2 packs of them for my manipulation routine. Their perfect, even if you flash, the flesh colored backs hide it. Id recomend these if your doing stage manips