Industrial strength construction transports heavy loads with ease. * Comes with heavy-duty tow bar and hitch pin that allows multiple trucks to be trained together. * Widetrack wheel placement, comes standard with 16" (40.6 cm) pneumatic tires and 6" (15.2 cm) swivel urethane non-marking casters. * Smooth surface is easy to clean and resists pitting and corroding. * X-Colors (Blue, Yellow and Red) available on selected SKUs. Contact customer service for details. * Optional domed lids available.