The Case-it Open Tab Binder is a premium binder that is sturdy enough to withstand the toughest of school years. This binder has a set of three round rings that have 2 inch of capacity. It features a Velcro flap that holds the binder closed and keeps your items from falling out. The interior has a five-subject expanding file folder to protect and organize all of your important documents. There is a large zippered pocket to hold pens, pencils, and any other class room needs. The S-816, like all of our Case-it binders, is made out of Kraft board to ensure that the binder will keep its firm, stiff shape. Case-it produces quality binders offering unique organizational tools for school or home use.