If you're looking for a binder that is stronger, lasts longer, and can hang tough with even the most demanding activities, look no further than this Avery Heavy Duty binder. The sturdy exterior features a tear-resistant spine (DuraHinge) and more flexible, split-resistant edges (DuraEdge). Heavy Duty binders are also fully adhered with a deep-weave polypropylene cover that is resistant to bubbling, surface wrinkles, and is tear-resistant. Designed to be stronger and more durable than basic binders, this binder features a tear-resistant spine (DuraHinge) and more flexible, split-resistant edges (DuraEdge). Deep texture film offers a smoother finish and features a linen pattern for high-quality look and feel. Secure but easy to open; One Touch Slant rings are back mounted, gap free and release at the touch of a button. Slant rings and four interior pockets. Each 3 ring binder has plenty of room to hold lots of paper! Four interior pockets help to keep loose papers, pictures and extra documents secure. Wide front and back binder panels fully cover standard dividers and sheet protectors. Nonstick archival-safe material won't lift ink or toner off printed pages. Heavy Duty view binder allows for customization on spine, front and back covers. Easily customize a binder cover page using free templates and designs at avery.com/templates. UL Claim Validation - UL environmental claim validations lend third-party credibility to single-attribute environmental claims. Contains Recycled Content - See Specs for Details