This composition book cover is 5" x 3 5/8" when closed and holds a small composition book that is 4 1/2 " by 3 1/4 inches. I found these in a package of three at the Dollar Store. The fabric on this cover is Harry Potter. You can easily switch out the composition books and one is included with this one. An elastic keeps your book closed. Nice to keep in your handbag to jot down notes or to keep a list of things you need to pick up at a store.