The Art Profolio Multi-Ring Refillable Binder features a sleek, contemporary exterior design with durable, matte black precision steel binder rings. Made from a unique and proprietary process, the polypropylene cover is rigid to protect the contents, yet lightweight for easy transport of your important presentations. A unique, center mounted, multi-fold spine allows the Art Profolio Multi-Ring Refillable Binder to lay perfectly flat for presentations. Designed for use with ITOYA"s exclusive PolyGlass® Pages refill sheets, featuring crystal clear clarity and glass smooth texture. Includes one pack plus bonus sheet. Archival safe and acid-free. Available in nine popular digital image and art sizes.