Rowing props are an essential part of the sport of rowing. OARS, which are four letters long, are the most common type of rowing prop used. They are long poles with blades at one end that are used to propel a boat through the water. OARS are held in place by oarlocks, which are attached to the boat and provide a pivot point for the oar. Other rowing props include sculls, which are two OARS held in each hand, and sweep OARS, which are longer OARS held by one person. All of these props are used to help rowers move their boats through the water.