Five Star Zipper Binder with Expanding Pocket is a great choice for a busy student. Durable design and water resistant materials stands up to daily wear and tear. Lasts All Year. GUARANTEED!* Expanding pocket with a full bottom on the exterior of the binder and allows you to securely store and carry textbooks, notebooks and more. Access them quickly without needing to unzip the binder. Inside the binder are 3 rings that hold 380 sheets and a 5-pocket expanding file that holds an additional 200 sheets, for a total sheet capacity of 580 sheets. A great choice for school, the binder has a padded pocket to carry a tablet or other digital device without any risk of damage. The binder as a whole has a full zipper closure and a unique, convertible strap. The binder can be carried on your back or like a messenger bag. It fits in a standard backpack as well if you prefer. Binder is black. Overall size is 12.25 in. x 12.75 in. x 2.5 in. *ACCO Brands will replace any Five Star binder that is returned within one year from the date of purchase. This guarantee does not cover damage due to abuse.