Avery Heavy-Duty View 3 Ring Binders, 0.5" One Touch Slant Rings, 4 White Binders (79709) - 1/2" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 135 Sheet Capacity - 135 Ring - Fastener: Slant Ring - Pocket: 4 - Polypropylene - White - Adhesive,