Wire Lan Management System offers a cost-effective means to house your LAN system. Each 18" deep durable wire shelf adjusts in 1" increments and supports up to 650 lb. Open shelf design maximizes air circulation between components, extending their life. Cantilever shelf extends out an additional 10-3/4" to provide easy access to keyboards. Powder-coat finish complements your high-tech environment. Made of steel. Optional Safco Wire Drop Shelf, Wire Utility Basket, Wire Keyboard Holder and Bumper Guard Caster Kit (all sold separately) further enhance flexibility and storage capabilities.