Furinno WS15004 Wayar Heavy Duty Wire Shelving System, 4-Tier, Black Durable structure: Industrial strength heavy duty matte-black-coated steel, heat and salt tested Multi-functional: Fit in your kitchen, office, garage and any room where needs additional storage Adjustable leveling feet: Keep the rack sturdy on uneven surface Easily adjustable shelf height in 1-inch increments No tools needed and only takes about 10-15 minutes to assemble