A 400-meter track is a standard outdoor running track used in athletics. It is oval-shaped, with two straight sections and two curved sections, allowing athletes to complete a lap of 400 meters. The track is typically made of synthetic materials, providing a smooth surface for running. Each lane on the track is usually 1.22 meters wide, and there are typically eight lanes available for competition. The 400-meter race is a common event in track and field competitions, testing both speed and endurance as athletes sprint the full distance.