Power Stop's Z17 Evolution Geomet coated brake kit eliminates dust, prevent rust and improve stopping power. The disc brake rotors are fully coated, including inside the vanes, using genuine GEOMET rust preventative coating, which protects against rust and corrosion without influencing the vehicle's braking performance. Power Stop's Z17 low dust ceramic formula is validated through on-vehicle 3rd party tests in USA. Power Stop Z17 Evolution Geomet coated brake kit makes it simple to complete your brake job by including everything you need: perfectly matched Geomet coated brake rotors, Z17 Evolution clean ride ceramic brake pads, premium hardware, and high-performance lubricant.