The Zimmermann Brake Kit - Rear - 138896 is a comprehensive kit designed for servicing the rear brakes of a car. It includes a variety of high-quality parts and components to ensure optimal performance and safety while driving. The kit contains three main components, including brake pads, brake rotors, and brake wear sensors. These parts work together to provide efficient and reliable braking power for the vehicle. The brake pads are responsible for creating friction against the brake rotors, which in turn slows down and stops the vehicle. The brake rotors are durable discs that rotate with the wheels and are responsible for absorbing the heat generated by the braking process. The brake wear sensors are designed to monitor the condition of the brake pads and alert the driver when they need to be replaced. This kit is an essential maintenance item for any car owner looking to keep their vehicle's braking system in top condition.