horseshoe

A horseshoe is a U-shaped metal object traditionally made to protect the hooves of horses. It is usually nailed to the bottom of a horse's hoof to prevent wear and injury while providing better traction. Horseshoes have been used for centuries and can be made from various materials, including steel and aluminum. Additionally, horseshoes are often associated with good luck in some cultures, partly due to their shape and because they are usually hung with the open end facing up to catch good fortune.