Avery Heavy-Duty View Binder - 1" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 275 Sheet Capacity - 1 2/5" Spine Width - 3 x 1" Ring - Fastener: Ring - Pocket: 4, Internal - Polypropylene - White - Recycled - Adhesive, Clear Overlay, Flexible, Hea