Avery Heavy-Duty View 3 Ring Binders, 1" One Touch Slant Rings, 4 White Binders (79780 - 1" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 250 Sheet Capacity - 1 2/5" Spine Width - 3 x 1" Ring - Fastener: Slant Ring - Pocket: 4, Internal - Polypropy