DuraHinge design is stronger, lasts longer and resists tearing, and DuraEdge feature makes the sides and top more pliable to resist splittingDeep texture film offers a smoother finish and features a linen pattern for high-quality look and feelOne Touch EZD locking rings open with ease and keep pages secureEZD rings hold up more than same size slant and round ringsGap-free design keeps pages from falling outNonstick, archival-safe material won't lift ink or toner off printed pagesWide front and back binder panels fully cover standard dividers and sheet protectorsOrganize and secure paper with four stacked pockets