Avery Durable View 3 Ring Binder, 0.5" Slant Rings, 1 Black Binder (17001) - 1/2" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 120 Sheet Capacity - 135 Ring - Fastener: Slant Ring - Pocket: 2, Internal - Polypropylene - Black - Adhesive, Dura