Carts, trucks, and dollies are used to transport a wide range of bulk materials, equipment, tools, and supplies in and around facilities. Carts can be used to transport cleaning supplies, accessories, and light-duty equipment. Hand trucks come in two- and four-wheeled forms. Two-wheeled hand trucks stand upright and have small platforms, while four-wheeled hand trucks have long platforms to carry large or heavy containers. Dollies are used to transport heavy containers, such as steel drums, or large boxes and pieces of equipment.