The ATE Brake Kit - Front - 134991 is a comprehensive kit of products designed for a car's front brakes. It includes four different components, each with a specific function in maintaining and improving the performance of a car's braking system. The first component is a set of brake pads, which are responsible for creating friction against the brake rotors to slow down or stop the vehicle. The second component is a set of brake rotors, which are the discs that the brake pads press against to create the necessary friction. The third component is a set of brake calipers, which house the brake pads and are responsible for squeezing them against the rotors. The final component is a set of brake wear sensors, which monitor the thickness of the brake pads and alert the driver when they need to be replaced. This ATE Brake Kit is specifically designed for the front brakes of a car and is a reliable and convenient option for maintaining optimal braking performance.