The Zimmermann Brake Kit - Front - 138702 is a comprehensive kit of products designed for use on a car's front brakes. It includes a variety of essential components to ensure optimal braking performance and safety. The kit includes a set of brake pads, which are responsible for creating friction against the brake rotors to slow down or stop the vehicle. It also contains a set of brake rotors, which are the discs that the brake pads press against to create the necessary friction. Additionally, the kit includes brake calipers, which house the brake pads and apply pressure to them when the brake pedal is pressed. These components work together to effectively slow down and stop the car. The specific brand names of the contents are not mentioned, but the kit is designed to fit and service a variety of car models.