Five (5) ferrule plug made from Australian hard wood in the acorn style, with a cork base mounted over a brass shaft. Our ferrule plugs are built in eight sizes, to fit and protect female ferrules for 10/64, 11/64, 12/64, 13/64, 14/64, 15/64, 16/64 and 17/64. Please measure the female ferrule and check the exact size as all ferrules are not exactly the same size. You can mix the different sizes
