The uncompromising durable build of these heavy-duty binders is enhanced by clear view covers and spine. Featuring our strongest covers and made of our custom formulated PVC-free polypropylene these binders last up to 10X longer than ones made of vinyl. Extra durable hinges. Heavy-duty binders also feature never-gap rings for secure and snag-free paper storage. Includes two interior pockets. Capacity Range [Max]: 1 1/2in; Sheet Capacity: 350; Color(s): Red; Binder Sheet Size: 8 1/2 x 11.