A sway bar, also known as a stabilizer bar, is a component of a vehicle's suspension system. Its primary function is to reduce body roll during cornering, helping to keep the vehicle stable and improve handling. By connecting the left and right wheels, it distributes the forces experienced during turns, enhancing overall driving safety and comfort. Sway bars are typically made of steel and come in various sizes and shapes, depending on the vehicle's design. They can be found in most cars, trucks, and SUVs, playing a crucial role in maintaining balance and control, especially in high-speed driving or sharp turns.