The Zimmermann Brake Kit - Rear - 138436 is a comprehensive set of products designed for the maintenance and repair of a car's rear brakes. It includes four different components, each with a specific function in ensuring the proper functioning of the vehicle's braking system. The first component is a set of rear brake pads, which are responsible for creating friction against the brake rotors to slow down or stop the car. The second component is a pair of rear brake rotors, which work together with the brake pads to create the necessary friction for braking. The third component is a set of rear brake wear sensors, which monitor the condition of the brake pads and alert the driver when they need to be replaced. The final component is a set of rear brake pad retaining pins, which secure the brake pads in place and allow for smooth movement during braking. This kit is essential for maintaining the safety and performance of a car's braking system and is suitable for a wide range of car models.