Pfaff Stitch-in-the-Ditch Foot - 820542096 Snap on the Stitch-in-Ditch Foot. Select a straight stitch (or another stitch that has a centered needle position like the reinforced straight stitch or the straight stitch hand looked quilt stitch) Place the quilt under the presser foot with the guide in the seams of the pieced quilt patches. Quilt the lines so that the guide of the presser foot is exactly in the center of the pieced seams Fits these Pfaff models: Select 2.0 3.0 4.0, 935, 939, 953, 955, 975, 1050, 1051, 1071, 1150, 1151, 1171, 1229, 1371, 1467, 1471, 1472, 1473, 1475, 1520, 1522, 1523, 1524, 1525, 1526, 1527, 1528, 1529, 1530, 1534, 1536, 1538, 1540, 1546, 1548, 2010, 2014, 2016, 2020, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2030, 2032, 2034, 2036, 2038, 2040, 2042,2044, 2046, 2048, 2054, 2056, 2058, 2124, 2134, 2140, 2144, 2170, 6091, 6110, 6112, 6120, 6122, 6150, 6152, 6230, 6232, 6250, 6252, 6270, 7510, 7530, 7550, 7560, 7562, 7570, Creative Vision. Also fits Pfaff Hobby Series, Hobbymatic Series, when combined with the Low Shank Snap-on Presser Foot Holder / ankle . Also fits these PFAFF models: Pfaff 1196, 1197, 1199, 1209, 1211, 1212, 1213, 1214, 1215, 1216, 1217, 1221, 1222, 1222E, 1222SE, and 1229, when used with the high-shank snap-on holder