Heavy Duty Material Handling Trolley. Trolley Engaged With 4 Inch Heavy Duty Nylon Fixed Castor Wheels At Front ,Swivel With Brake Castor Wheel At Rear End. This Material Handling Trolley Is Innovative Designed With 3-Steps Ladder To Reduce Handling / Loading / Unloading Time. Tubing And Each Shelf Made Of Tough Steel For Added Durability.