The Zimmermann Brake Kit - Front - 138529 is a comprehensive set of products designed for use on a car's front brakes. The kit includes various components that work together to provide optimal braking performance and safety. These components include brake pads, rotors, and calipers. The brake pads are responsible for creating friction against the rotors, which are the metal discs that rotate with the wheels to slow down the car. The calipers are responsible for holding the brake pads in place and applying pressure to them when the brake pedal is pressed. This kit is specifically designed for the front brakes of a car and is suitable for various makes and models. It is a convenient and cost-effective solution for those looking to replace their front brake components.