Keep your largest files safely stored and ready for work with the handy Adir Blueprint File Hanging Clamps! This set of 6 clamps is perfect for the home or professional office.The Set of 6 Adir Blueprint File Hanging Clamps are designed to hold large format documents safely and securely. Made of strong aluminum with solid steel silver wing knobs, these clamps are great for blueprint storage or other large document files. Each clamp holds up to 100 sheets or 20 lbs with transparent label holders. Designed to be used with all Adir, Mayline and Safco racks.