A wrecking ball is a heavy steel ball used in demolition to break down buildings and structures. It is typically suspended from a crane and swung into walls or other parts of a building to cause destruction. The weight and momentum of the ball make it effective for tearing down concrete and steel. Wrecking balls can vary in size, but they are usually several tons heavy. They are often used in urban areas where buildings need to be removed for new construction or renovation. Safety measures are essential during the demolition process to protect workers and nearby structures.