Cardinal Economy 3 Ring Binders are perfect organizational tools for working from home and virtual learning, in addtion to being tried and true solutions at the office and in the classroom. Buying binders in bulk is smart and economical, so stock up on these binder 4 packs. The ClearVue covers and spine allow you to organize paperwork by student, subject, class, project, quarter, month and more—quickly find what you need at a glance. Each binder has back-mounted, round metal rings for a clean, uncluttered spine. Made of PVC free, non stick material, so ink won't transfer from inserts, keeping covers nice and neat. Two clear interior pockets make it easy to keep printer paper, quick-facts or handouts within easy reach. Cardinal Economy Binders are the choice for back to school and office work alike. Each binder's cover boards are made from 100% recycled fiber with at least 98% post-consumer fiber. 1 Inch. Holds 225 sheets. Blue. 4 Pack.