The Meyle HD Control Arm Kit - 137644 is a comprehensive kit designed to provide all the necessary components for replacing or upgrading the control arms on a car. This kit includes three main products: a set of control arms, a set of ball joints, and a set of bushings. The control arms are responsible for connecting the wheels to the chassis of the car, while the ball joints and bushings help to absorb shock and maintain proper alignment. The specific brand names of the products included in this kit are not mentioned, but they are high-quality and durable components designed to fit a wide range of car models. This kit is ideal for those looking to improve the handling and stability of their vehicle, or for those who need to replace worn or damaged control arm components.