Cardinal Heavy Duty ClearVue Round Ring Binders feature a PVC-free material that will not stick to cover inserts or materials stored inside. The cover material is archival-safe for all documents including photos and offers superior, cold-crack resistance to 5 degrees Fahrenheit. Use the free online templates at www.CardinalBrands.com/support to customize title sheets and put them in the non-glare, clear overlays on the all 3 cover sides of your Heavy Duty ClearVue Binder. Each binder also includes horizontal pockets on the inside front and back covers. Back-mounted, metal rings with dual opening and closing triggers allow sheets to lie flat. Cardinal Heavy Duty ClearVue Round Ring Binders contain 54 percent recycled content by material weight; 49 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!