High Impact Poly Service Utility cart is constructed from lightweight cimmercial-duty polypropylene meterial that won't rust or chip. Features 3 inch deep trays with four smooth rolling non-marring 5 inch casters. Two swivel and two fixed. Each shelf tray has a working dimension of 30 inches length and 16 inches wide. quick to assemble and easy to clean. will easily transport loads up to 500 lbs. Ideal for home use, gargae, workshops, warehouse, office, restaurants, businesses and more.