AdirOffice Blueprint File Hanging Clamps are a perfect way to organize important files. Made specifically for blueprints, plan drawings, layouts, maps and other large-format documents, they are designed to hold those large documents safely and securely. Expertly made using strong, sturdy aluminum with solid steel, silver wing knobs, these clamps are soundly durable to provide long-lasting strength and use for years to come. The jaws on each clamp open to 1" wide to effectively clip and hold all your files together, and can accommodate up to 100 sheets or 20 pounds. Using all six clamps in this pack, you'll be able to hold up to 600 sheets or 120 pounds at the same time. The right hanging clamps are key to a filing system's effectiveness. For easy file retrieval and identification, snap-on, plastic label holders are included in the package. You'll be able to look through that huge assortment of files and locate the one you need in no time flat, making your workday more efficient and organized. You will certainly impress your audience if you plan on using these clamps to hold together documents for a presentation you're going to make. Besides providing the strength you need, they are attractive, visually pleasing and professional looking to make each presentation a success. Safely storing and holding all of your documents in one convenient place, the clamps can be used with all Adir, Mayline, Alvin, Safco, Brookside Design and Sandusky racks. Combine these clamps with a rack of your choice to meet all of your filing needs.