Vintage Singer sewing machine low shank gathering / shirring foot - This foot is compatible with the 221 & 222K Featherweight along with other low shank models as well including the 15, 27, 28, 66, 99, 127, 128, 185, 192, 201, 306, 319, 328, etc. Very nice vintage condition, bright and rust free. Genuine, original Simanco accessory #121441.