ProSource PR1602 Wheelbarrow Tire, PolyurethaneWheelbarrow Tire can handle tough terrains and includes a universal adapter kit for proper fitting. Highlights: Tire Material: Polyurethane Tread Type: Ribbed Steel rim Maximum Load Capacity: 500 lbs Suitable for 6 cu ft Steel Wheelbarrow WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www. P65Warnings.