Avery Heavy-Duty View 3 Ring Binders, 2" One Touch Slant Rings, 4 White Binders (79790) - 2" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 530 Sheet Capacity - 530 Ring - Fastener: Slant Ring - Pocket: 4 - Polypropylene - Adhesive, Archival-sa