The Zimmermann Brake Kit - Rear - 138834 is a comprehensive kit of products designed for the maintenance and repair of a car's rear brakes. It includes a variety of essential components that work together to ensure safe and efficient braking performance. The kit contains three main components: brake pads, brake rotors, and brake hardware. The brake pads are responsible for creating the friction needed to slow down or stop the vehicle, while the brake rotors provide a smooth surface for the pads to grip onto. The brake hardware, such as caliper bolts and shims, helps to secure the pads and rotors in place and maintain proper alignment. The specific contents of the kit may vary, but it typically includes multiple sets of brake pads and rotors, as well as all the necessary hardware for installation. This comprehensive kit is a convenient and cost-effective solution for maintaining the rear brakes of a car.