Simply the slickest way to wipe weed off your rudder, while you are sailing, or in-between races! Since its almost impossible to get the boat to completely stop - we designed the weed wiper to actually work while the boat is moving - since the shape of the wiper uses the water flowing past to hold it onto the leading edge of the rudder. When you need one - you NEED one. Don’t get caught dragging weed and going slow again. (And Thank Hank for the idea!)