Hanging data binder features Presstex covers and storage hooks to secure up to 6 of unburst sheets. Design is top-loading and bottom-loading. Acrylic coating on binder provides a water-resistant cover. Retractable filing hooks are designed for both single-point filing and a drop file system. These flexible nylon posts adjust to hold up to 6 of sheets attached in continuous form. Data binder accommodates the following center posts: 10-1/2 9 8-1/2 8 and 7 .Acco Presstex Storage Hook Data Binders Light Blue 1 Each (Quantity)