A Ball Joint is a component in a vehicle's suspension system. It functions as a pivot point between the steering knuckles and Control Arms, allowing the suspension to move up and down while also enabling the wheels to turn. In simple terms, a Ball Joint acts as a link between the wheels and the frame of a vehicle.

A Ball Joint consists of a ball-and-socket design, where the ball is connected to a stud that fits into a socket. The ball is made of hardened steel and is typically coated to prevent rust and corrosion. The socket is usually made of durable metal and is designed to withstand high-stress levels.

The Ball Joint is held in place by a casing, typically made of metal, which is then secured to the Control Arm using nuts and bolts. A dust boot is also commonly included to keep dirt, debris, and moisture out of the joint, helping to prolong its lifespan.