Wilson Jones 3 Inch 3 Ring Binder, Basic Round Ring View Binder, Black, 12 Pack (W362-49BPK) 3 inch round ring binder holds 550 sheets; binders have two interior pockets; 12 binders per pack Customizable front and back cover and spine (Inserts shown not included); standard round ring PVC Free polypropylene material; chipboard is 100% recycled with 75% post consumer waste