ATC Crystal Clear Deck of Cards Box/Case 1 in. Thick. This is an artist trading card crystal clear box/case made of high impact polystyrene and a friction fit design. Great for storing and protecting your ATC cards, but is also great for holding your blank ATC background papers or use them to store small embellishments like postage stamps, brads, eyelets, buttons, paperclips etc. To get an idea of its size, it holds 2 standard deck of cards. The exterior dimensions are 2 3/4 in. x 3 3/4 in. x 1 in., and the interior dimensions are 2 1/2 in. x 3 1/2 in. x 7/8 in. Only one case per quantity ordered. (Photo displays a case with some of my Artist Trading Cards, as well as an empty and opened case).