Topeakmart Commercial 6-Shelf Shelving Unit Metal Wire Shelving Rack Sturdy steel frame powder-coated in black finish Rust-resistant and easy to maintain. Durably welded steel wire mesh structure, Brings superb weight limit and better stability. Four 2 inch heavy duty casters for movability.2 locks for safety and immovability Fully adjustable by 1 inch to suit various item sizes, you can remove a layer to fit extra large objects. 100kg weight capacity for each shelf without castors,tool-free manual assembly.