4" x 2" Polyon Cast Wheel Rigid Caster - 800 lbs. Capacity Stair Climbing Hand Truck What wheel material is listed

What wheel material is listed for this product

Use to lubricate recessed fittings where obstructions will not permit use of hydraulic coupler

Cylinders (Model 23001) provide horizontal storage of liquid petroleum gas (LPG) gas cylinders

with an overall height of 60

dimensions (17" W x 22" H x 17" D)

4" x 2" Polyon Cast Wheel Rigid Caster - 800 lbs. Capacity Stair Climbing Hand Truck What wheel material is listedProduct Overview Polyurethane elastomer tread chemically bonded to a cast iron core. These wheels are somewhat heavy and are ideal for warehouses with concrete and hardwood flooring. Tread: Polyurethane Elastomer This caster is listed with wheel diameter 4", tread width 2", load capacity 800 Lbs., tread type Polyurethane Elastomer, and bearing type Roller Bearing. Before ordering, verify the listed wheel dimensions, load capacity, bore or bearing, hub