The Zimmermann Brake Kit - Front - 138501 is a comprehensive kit of products designed to service the front brakes of a car. It includes three essential components: brake pads, rotors, and hardware. The brake pads are responsible for creating friction against the rotors, which in turn slows down the vehicle. The rotors are the circular discs that the brake pads clamp onto, and they are essential for the braking process. The hardware included in the kit is used to secure the brake pads and rotors in place, ensuring proper functioning of the brakes. This kit is specifically designed for the front brakes of a car and does not include any brand names of the parts it services.