Avery Heavy-Duty View Binders with One Touch EZD Rings

4" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 780 Sheet Capacity - 4 1/2" Spine Width - 3 x 4" Ring(s) - Fastener(s): Ring - Pocket(s): 4, Internal - Polypropylene - White - Recycled - Pocket, Heavy Duty, One Touch Ring, Long Lasting, Tear Resistant, Split Resistant, PVC-free, Durable, Non-stick, Wear Resistant, Sturdy, ... - 1 Each. DuraHinge design that's stronger, lasts longer and resists tearing. DuraEdge makes the sides and top more pliable to resist splitting.