Avery® Heavy Duty Binder 4" , One Touch™ Locking D Rings, Black

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