National or Specialty series pages are punched for 3-ring and 2-post binders. Both the 3-ring and 2 post binders are available in two sizes. All Scott binders are covered with a tough green leatherette material that is washable and reinforced at stress points for long wear. * For simplicity and ease you can't beat the Specialty Series three-ring binder. With the three-ring binder, pages lay flat, the rings make turning the pages easy. The locking mechanism insures that the rings won't pop open even when the binder is full. Available in two sizes. You can protect your pages and binders from the harmful effects of dirt and dust with matching slipcases.