Heavy Duty Black Steel 4-Tier Shelving Unit with Locking CastersThis Heavy Duty Black Steel 4-Tier Shelving Unit is ideal for business, home, garage, or kitchen use. Designed for durability, each shelf holds up to 250 lbs on feet levelers, making it perfect for storing large, heavy boxes and equipment. The black powder-coated steel frame ensures long-lasting strength and resistance to rust, while the included locking casters provide mobility and stability.Key Features Heavy-Duty Construction 250 lb weight capacity per shelf (on feet levelers) Sturdy black powder-coated steel for durability and rust resistance Adjustable & Customizable Tool-free assembly with a slip-sleeve locking system Shelves can be adjusted in 1" increments to fit your storage needs Versatile & Multi-Purpose Suitable for home, business, kitchen, garage, or warehouse storage Stores large and heavy items with ease Easy Mobility & Stability Locking casters included for effortless movement and secure placement NSF certi