DuraHinge design is stronger, lasts longer and resists tearing, and 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. One Touch EZD locking rings open with ease and keep pages secure. EZD rings hold up more than same size slant and round rings. Gap-free design keeps pages from falling out. Nonstick, archival-safe material won't lift ink or toner off printed pages. Wide front and back binder panels fully cover standard dividers and sheet protectors. Organize and secure paper with four stacked pockets