The Toter heavy duty caster cart is a two-wheeled container with two quiet cap casters mounted on the bottom/front edge to stabilize heavy loads and an attached lid. Toter carts are manufactured through their patented Advanced Rotational Molding process using medium density polyethylene. This allows for added rigidity and extra material in critical wear areas, creating their patented rugged rim at the top edge and the wear strip at the bottom of the container. Toter carts offer a service life expectancy virtually double that of other brands. A distinctive Gray stone textured finish masks normal wear and tear and keeps your Toter looking new for years.