The Zimmermann Brake Kit - Rear - 138285 is a comprehensive kit of products designed for the maintenance and repair of a car's rear brakes. It includes four separate components, each serving a specific purpose in ensuring the proper functioning of the vehicle's braking system. These components include brake pads, brake rotors, brake calipers, and brake hardware. The brake pads are responsible for creating friction against the rotors, which in turn slows down and stops the vehicle. The rotors are the discs that the brake pads press against to create the necessary friction. The calipers are responsible for holding the brake pads in place and applying pressure to them when the brake pedal is pressed. Finally, the brake hardware consists of various small parts and pieces that assist in the smooth operation of the brakes, such as clips, shims, and springs. This kit is specifically designed for the rear brakes of a car and does not include any brand names in its contents.