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 Nonstick archival-safe material means binders won't lift ink or toner off printed pages Organize and secure paper with four stacked pockets Slant rings have a higher page capacity compared to same size round rings; Holds up to 135 sheets