The Webb Wheel Disc Brake Rotors with LifeShield technology have an invisible protective layer across the entire rotor surface to resist corrosion beyond what traditional coatings offer. LifeShield is a unique heat treatment process that adds increased corrosion protection and provides wear resistance. The combined benefit of more corrosion protection and greater wear resistance realized with LifeShield technology means longer rotor life resulting in lower maintenance and operating costs, according to the company. These rotors are available for popular medium and heavy duty disc brake applications.