This 3 inch durable binder offers more protection than standard binders thanks to its tear-resistant DuraHinge spine and more flexible, DuraEdge split-resistant edges Holds up to 670 sheets with 3 inch slant rings; binder cover has 3.5 inch wide spine Identify your clear view binder at a glance with a customizable spine, front, and back cover that lets you make your binder your own Important records and documents stay flat like they're supposed to because slant rings are mounted on the rear binder panel instead of on the spine Don't worry about exceeding sheet capacity; this durable view binder has additional storage with 2 interior clear pockets made with nonstick PVC-free material; no ink transfer