Buxton Scan Card Organizers with Key Ring. It's nice to always have the right one along, but cluttering your keyring with them only creates frustration while trying to find a key. And having them banging around against a bunch of keys, loose change, and other pocket cargo isn't good for the cards, either. Eliminate all those headaches and keep all of your mini scan club/membership cards in one convenient spot, and still keep them attached to your keys. Simply undo the screw and put the cards over the post and screw it back together again, snap the closure and off you go. Card holder measures 2"W x 3"H x .5" thick with a 1" diameter stainless steel split key ring.