This 5-Tier Slim Spacesaver Wire Shelving unit is made of welded steel wire to support up to 500 pounds when weight is evenly distributed among all shelves (100 pounds per shelf). The rack's chrome-plated frame is notched in 1" increments, allowing for easy no-tools-required precise shelf height setup and adjustment. Its open-wire design permits greater penetration of water from fire sprinklers, permits more light and air circulation, and resists dust buildup. This sturdy wire shelving unit's attractive and durable chrome finish complements any décor and resists dirt and corrosion, ensuring a lasting organization and storage solution for your home or business. Its slim design and adjustable leveling feet provide convenient and stable storage space in narrow, often unused areas. The unit is quick and easy to assemble in just minutes, following the enclosed instructions.