Avery Flexi-View 3 Ring Binders - 1 1/2" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 275 Sheet Capacity - 2 1/10" Spine Width - 3 Ring - Fastener: Round Ring - Pocket: 1, Internal, Inside Back - Polypropylene - Black - Pocket, Flexible, Dura