The EBC Brakes Premium Rotor Sets RK991 are high-quality brake rotors designed for optimal performance and durability. These rotors are made from premium materials and feature a precision-machined surface for smooth and consistent braking. They are also coated with a corrosion-resistant finish to ensure long-lasting protection against rust and wear. The RK991 rotor sets are specifically designed to fit a wide range of vehicles and are an excellent choice for those looking for reliable and high-performing brake rotors.