Fits : Singer models 266, 290, 301, 401, 403A, 411, 431, 500, 501, 502, 600, 604, 610, 620, 625, 626,
628, 630, 631, 635, 636, 638, 639, 640, 645, 646, 649, 700, 706, 708, 720, 721, 725, 729, 740,
746, 760, 766, 770, 784, 786, 1000, 1036, 1050, 1100, 1410, 1411, 1425, 2000, 2001, 2010,
5910, 6233, 6234, 6235, 6267, 6268, 6740, 6800, 6900, 7028, 7033, 7043, 8019, 9005, 9008,
9010, 9012, 9015, 9018, 9020, 9022, 9027, 9032, 9123, 9133, 9135, 9137, 9143, 9210, 9217,
9224, 9240, 9323, 9334, 9400, 9408, 9416, 9417, 9420, 9423, 9430, 9432, 9440 and 9444.