Stock up on a bulk pack of 4 black binders; each 1 inch binder holds 225 sheets; great at-home space savers for schoolwork, documents, binder dividers, a 3 hole punch pencil pouch and more An upgraded standard economy binder, these Cardinal 3 ring binders have strong XtraLife cover hinges that resist splitting at the seams to survive daily use, plus 2 inside pockets for extra storage Personalize the Clear Vue cover and spine to easily find papers, school supplies and office supplies—ideal for virtual learning or working from home Cardinal Economy binders are PVC free and non stick so ink from printouts, artwork and photos won't transfer to the binder, keeping it reusable for different projects, classes or kids if needed Back-mounted round rings make it easier to insert printer paper into the notebook spine for labeling purposes; or leave the spine empty for a neat, clutter-free look