This heavy-duty low profile dolly cart is ideal for transporting a wide selection of storage containers and totes. The medium dolly is perfect for our CT037P. Made of 7/8" heavy-wall galvanized steel. Each cart is equipped with heavy-duty 3" diameter ball-bearing multi-directional rubber casters for great maneuverability. 90 lb weight capacity. Outside Dimensions: 35"H x 48"W x 23"D. Inside Dimensions: 41"W x 20"D.