The ATE Brake Kit - Rear - 134966 is a comprehensive kit of products designed for use on a car's rear brakes. It includes three different components, each with a specific function in maintaining and repairing the rear brake system of a vehicle. The first component is a set of brake pads, which are essential for creating friction and slowing down the vehicle when the brakes are applied. The second component is a set of brake discs, also known as rotors, which work in conjunction with the brake pads to create the necessary friction for braking. The third component is a set of brake calipers, which are responsible for squeezing the brake pads against the brake discs to create the necessary friction. This kit is designed to provide all the necessary parts for a complete rear brake replacement or repair, making it a convenient and cost-effective option for car owners.