ProCart is a versatile utility cart. Hinged side gates allow the cart to convert from a flat top to a box top on the fly. Raise gates to contain items on shelves during transport; lower to easily slide items off. Structural foam plastic construction is dent-resistant and rustproof. Deep, molded-in storage compartments are perfect for small items and your coffee cup. Utility cart holds up to 400 lb. weight. Storage bins are sold separately.