Buyers Products Tri-Axle Fender is a durable and lightweight option for tri-axle trucks. Constructed from molded polyethylene, it won't rust or dent and can handle wear and tear from daily use. The grooved design reduces splash and repels road debris away from the tires. A set of three fenders weighs less than 30 lb. so you add protection without a lot of extra weight to your truck. Mounting kit sold separately. See "Related Products" below for more information.