The Zimmermann Brake Kit - Front/Rear - 138685 is a comprehensive set of products designed for a car's braking system. It includes a variety of essential components for both the front and rear brakes, making it suitable for a complete brake replacement or upgrade. The kit contains high-quality brake pads, rotors, calipers, and other necessary hardware for optimal brake performance. It is suitable for a range of car models and provides all the necessary parts for a complete brake overhaul. The kit is a convenient and cost-effective solution for maintaining and improving a car's braking system.