Each heavy-duty binder offer more protection than standard binders with its durable, tear-resistant DuraHinge spine and flexible, DuraEdge split-resistant edges Get a professional presentation with slant ring binders that feature a deep texture film for a high-quality finish and wide panels that fully cover standard dividers and sheet protectors Easily open and close the One Touch 0.5 inch slant rings that can hold up to 135 sheets and are back-mounted to keep pages flat; each binder cover has a 0.7 inch wide spine Enjoy additional storage in each 1/2-inch 3 ring binder with the four interior clear pockets made from nonstick archival-safe material designed to prevent ink transfer Personalize your organization with binders that feature a clear view spine and front and back covers for instant identification of your customized binders