3M Adjustable Document Copy Holder, In-line with Monitor Minimizing Head and Neck Movement, 150 Sheet Capacity Holds Sheets to Books, Elastic Line Guide Keeps Pages Open, 14" Wide, Black (DH630) Height and angle adjustable document holder places documents in-line with your monitor and keyboard reducing movement of eyes, neck and shoulders minimizing strain and increasing comfort The base attaches to desk with Command Adhesive allowing ledge to dip below the desk edge increasing desk space Elastic line guide marks you place, keeps pages open and stretches to accommodate even the thickest books The 14" wide backplate and 150 sheet capacity supports books, catalogs and just about any size document 2 Year Warranty