A steering wheel is a circular device found in vehicles, such as cars and trucks, that allows the driver to control the direction of the vehicle. By turning the steering wheel, the driver can guide the front wheels, which in turn affects the vehicle's path. Steering wheels are typically made of materials like plastic, leather, or metal and may include features like buttons for audio controls or cruise control. Most steering wheels are connected to a system called steering mechanism, which translates the driver's movements into the turning of the wheels. This system can be either manual or powered, with power steering making it easier to turn the wheel, especially at low speeds.