The term ROWBOAT PROPS refers to the OARS used to propel a rowboat. OARS are long, flat pieces of wood or metal that are attached to the sides of the boat and used to move it through the water. They are usually held in place by oarlocks, which are metal rings that fit around the oar and attach it to the boat. OARS are an essential part of any rowboat, as they provide the power needed to move the boat forward.