Oars are long, slender tools used to propel and steer boats through water. Typically made of wood, plastic, or metal, they consist of a handle and a flat blade at one end. Rowers use oars by pushing them against the water, creating thrust that moves the boat forward. Oars are essential for various types of watercraft, including rowboats, canoes, and kayaks. They come in different sizes and shapes, depending on the type of boat and the rowing technique. Proper use of oars can enhance speed and maneuverability, making them a vital component of water navigation.