HICKORY HARDWARE's Faultless air cargo and conveyor series are ideal for applications in the airline and aerospace industry, cargo handling, conveyors, and freight handling. Water- and chemical-resistant and able to withstand steam cleaning, the wheels are made of polypropylene and provide high load capacity and mobility. Easy to install and replace in the field, they also come in a precision heavy-duty, flanged, and standard line models to fit most applications. www.hickoryhardware.com