Rubbermaid Commercial Tripple Trolley Utility-Duty Home/Office Cart, 250 lb Capacity, 20 1/2" x 32 1/2", Black (FG440000BLA) The Rubbermaid Commercial Triple Trolley efficiently transports large bulky loads and then folds flat for easy storage. Foam deck won't rust, dent, chip, or peel Handle easily converts trolley to dolly Plastic material is easy on walls and floors 3 position options No plate needed to connect the wheels to the cart.This product does not have plates to attach the casters. The casters are pushed directly into the openings on the cart.