Remember the sports card pages for the Garbage Pail Kid cards or baseball/basketball cards? These are very similar. These are what the cards that come in your kit (4×6/6×4 and 3×4/4×3 whether you are using vertical or horizontal orientation) slide into. There are multiple layout designs if you prefer. (I will show you different options along the way.) I have several of each because I purchased the big kit of pages with a coupon. I like to mix things up, too.