Cardinal 16801 Spine Vue Locking Round Ring Binder, 2" Cap, 11 x 8 1/2, Black Clear overlay for customization on all three sides with one letter-sized sheet Ideal for multiple binder assembly SureLock round rings Cover board made with 100% recycled fiber with at least 98% post-consumer fiber Awarded Ease-of Use Commendation from the Arthritis Foundation