The photo shows 20 red cards, but it's actually 10 red and 10 blue. I found a boxed Bicycle double back deck, so I made a set of 20 cards. How about using them for magic tricks? I'm also selling blue cards, so please take a look. If you only want 10 cards, it will be 500 yen. Also, if you purchase this along with something else I'm selling, I'll calculate it at 900 yen, so please comment before purchasing. I can also make a set of 10 red and 10 blue cards. Magic Magic Playing cards Bicycle Double back Trick Gimmick Double-backed