The Zimmermann Brake Kit - Rear - 138776 is a comprehensive set of products designed for use on a car's rear brakes. It includes various components and materials necessary for maintaining and repairing the rear brakes of a vehicle. The kit may include items such as brake pads, rotors, calipers, brake fluid, and other hardware. These products are specifically designed to fit and function on the rear brakes of a car, providing optimal performance and safety. This kit is ideal for those looking to service or upgrade their car's rear brakes, and it offers a convenient and cost-effective solution for brake maintenance.