Product Description Designed to last, Avery 79983 Heavy-Duty Black 3 Inch Binders are perfect for long-term storage and everyday use. Created with durable, non-stick polypropylene, Avery Heavy-Duty Binders are built to defend your documents from everyday wear and tear. Our DuraHinge technology helps avoid tearing along the spine and our DuraEdge technology makes the sides more pliable to resist splitting. The wide front and back panels are great for protecting sheet protectors and divider tabs. The 3 inch rings use our EZD design that opens with ease and can keep up to 670 pages secure. EZD rings can also hold up to 50% more sheets than round rings of the same size. The binder rings are mounted on the back cover to keep your pages flat to avoid creasing and for easy flipping. Four interior pockets are included to store loose sheets and extra documents. Whether you need binders for school, a presentation binder or a trading card binder, organize your next project with Heavy-Duty Avery Binders. From the Manufacturer Losing important documents can be frustrating and costly. You can keep tabs on up to 670 important pages using this Avery Heavy-Duty Vinyl EZD Ring Reference Binder 79983. Featuring wide, durable black front and back panels that fully cover standard dividers and sheet protectors for a professional look, this three-inch binder is perfect for keeping important school and work papers organized. With trademarked One Touch EZD Locking rings that open easily so pages can be added quickly and close gap-free so pages turn easily, this binder uses a back-mounted ring design to ensures that pages lie flat, so you can work smoothly. Four stacked pockets offer extra space for storing loose sheats and unpunched pages. And you can even feel good about the impact this binder has on the environment: its covers are PVC-free polypropylene, and it is crafted from 100-percent recycled chipboard.What's in the Box Black, Heavy-Duty 3-inch Reference Binder with EZD Rings