The Fellowes Designer Suites Shelf maximizes desktop space with a space-saving vertical design that supports up to 30 lbs. Holds books, clocks, desk items, or other Designer Suites products. Bridges up to four Designer Suites Letter Trays. Use with other Fellowes Designer Suites products to coordinate your desktop. No assembly required. For use with office, home office or school use, or wherever you would like to organize your desktop.