The black 24 x 18" Plastic Utility Tub Cart from Luxor is made from sturdy thermoplastic resin that is scratch, stain, dent, and rust-resistant. Rolling smoothly and quietly on four 4" casters, two of which have locking brakes, the cart's two molded polyethylene shelf tubs can support a total of 400 lb of cargo when evenly distributed. Each tub shelf measures 24 x 18" and is 2.5" deep.