7 Gypsies Mini ATC Library Drawer. This is an amazing mini drawer for holding your Artist Trading Cards and more! Great recipe or memory holder. It is 3 1/2 inches wide and 18 inches long. The inner dimension is 3 inches, so it is the perfect size for your 2 1/2 in. long x 3 1/2 in. high ATCs. Check out the other photos of this in this category too.