Product details:

Integrated molded ribs add strength and reduce spray. 100% polypropylene construction won't rust or corrode. Durable, forgiving, and lightweight poly construction. Buyers Products Full Round Poly Fenders have integrated molded ribs for extra toughness. The fenders are constructed from 100% polypropylene and will not rust or corrode. The fenders are durable, lightweight, and forgiving.They take a beating so the rest of your truck doesn't have to. Product Common Use Trucks with Dual Rear Wheels.