Avery 3" Heavy Duty View 3 Ring Binder, One Touch Slant Ring, Holds 8.5" x 11" Paper, 1 White Binder (79793) Designed to be stronger and more durable than basic binders, this white heavy-duty binder features a tear-resistant spine (DuraHinge) and more flexible, split-resistant edges (DuraEdge) Slant ring holds 40-50% more paper than basic 3 inch binder; 670-sheet capacity Secure but easy to open; One Touch slant rings are back mounted, gap free and release at the touch of a button Extra storage with 4 interior clear pockets; all Heavy Duty binders are made with nonstick PVC-free materialno ink transfer Heavy Duty view binder allows for customization on spine, front and back covers