The 10 pieces of leak plugs 5mm - 22mm made of softwood are part of the safety equipment of every yacht. The conical plugs are used to quickly seal small leaks, especially in seacocks and hoses. The plugs are driven into the leak with a hammer to seal it temporarily or to reduce the amount of water entering. Contents: 10 leak plugs of various diameters from 5mm to 22mm.