Be prepared for all of your schoolwork and filing needs with the Dual-301-BB Backpack Zipper Binder from Case-it. This binder has a 4″ capacity with two separate sets of 2″ D-rings for storing papers, notebooks and writing supplies. Whether you’re going back to school or you just need a place to securely store your office supplies, this binder does it all. A Velcro strap secures the included dividers on one side and on the other holding its content down like paperweights. The hold down pages have pouches and pockets that can be used to hold everything from pencils and pens to calculators and drafting supplies. Take your files on the go with the 5 subject expanding file filder that comes included with every DUAL-301-BB. It comes with a handle and a shoulder strap that converts into a backpack so you can easily take it around wherever you need.