Cardinal BasicSelect Round Ring Binders are an economical choice for your reference binder needs. Each binder has back-mounted, metal rings with dual opening and closing triggers to allow the sheets to lie flat. An XtraLife Hinge provides durability, so you know you will get your money"s worth with these basic binders. They also include horizontal pockets on the inside front and back covers for additional storage. Cardinal BasicSelect Round Ring Binders contain 63 percent recycled content by material weight; 59 percent post-consumer content, providing storage that is durable and stylish. Rugged enough for the warehouse, factory, outdoors or classroom, Cardinal Brands Binders offer a professional edge that puts you at an advantage and keeps your projects organized and looking great!