This 3-tier heavy duty bus cart is made of durable aluminum uprights and plastic shelving material. This cart offers a reliable and smooth option for transportation needs. Its 3 shelves supply plenty of room to filled and improving efficiency. Included with this cart are non-marking 4-inch casters that provide a quiet performance. It has a capacity of up to 300 pounds. Available in gray color. Measures 31-inch length by 16-inch width by 37-inch height.