Heavy-Duty binders have a DuraHinge design that's stronger, lasts longer and resists tearing, while the DuraEdge feature makes the sides and top more pliable to resist splitting Deep texture film offers a smoother finish and features a linen pattern for high-quality look and feel 3 inch One Touch slant rings hold up to 635 sheets, open with ease and keep pages secure; binder spine width is 3.5" Wide front and back binder panels fully cover standard dividers and sheet protectors Organize and store loose papers in the four clear interior pockets