Durable And Protective Design: The 3 ring binders have a 1.5 inch ring size, a tear-resistant DuraHinge spine, and flexible DuraEdge edges Ample Storage Capacity: The binders hold 375 sheets each, ideal for organizing school binder supplies, office binder supplies, or personal documents Customizable For Personalization: Easily identify and personalize your 1 1/2 inch binders with the customizable spine, front, and back cover Flat Storage For Documents: Keep important papers organized in the 3 ring binder 1.5 inch ring with the rear-mounted slant rings Additional Storage Pockets: Enjoy extra storage with two interior clear pockets for binders, made with nonstick PVC-free material, perfect for a binder with plastic pockets