The Lemforder Control Arm Ball Joint Kit - 479135 is a comprehensive set of products designed for servicing the control arm and ball joint of a car. This kit includes three main components - a control arm, a ball joint, and a joint boot - all of which are essential for the proper functioning of the suspension system in a vehicle. The control arm is a crucial part of the suspension system that connects the wheel hub to the chassis, allowing for smooth movement and stability while driving. The ball joint, on the other hand, acts as a pivot point between the control arm and the steering knuckle, allowing for the wheels to turn and move up and down. Lastly, the joint boot is a protective covering that prevents dirt and debris from entering the joint, ensuring its longevity and performance. This kit is a convenient and cost-effective solution for replacing worn or damaged control arm and ball joint components, ensuring optimal performance and safety while driving.