The card base is A2 in size (4-1/4" x 5-1//2" folded) and the file comes with the card base, mats, and the paper elements shown. The file is compatible with both the 8x12 and 12x12 mats. You can see additional images here: http://jamielanedesigns.blogspot.com/2017/05/graduation-cards-and-tags.html