Durable 1-inch binder can easily hold up to 220 sheets of 3-hole punched 8.5" x 11" papers, dividers and sheet protectors Stronger than basic binders, each durable binder features a tear-resistant spine (DuraHinge) and more flexible, split-resistant edges (DuraEdge) Easily customize and identify your binder's contents with the clear view cover and label holder on spine Pages lie flat and turn easily in the 3 ring binder with back mounted slant rings that hold sheets securely This multipack comes with a total of 4 durable binders