Bernina low shank adapter. Allows you to use either regular low shank presser feet or fit a low shank adapter to use clip on feet.
This adapter is for use on the following older machines;
1650, 1640, 1630, 1530, 1260, 1230, 1130, 1120, 1090, 1080
1031, 1030, 1020, 1015, 1011, 1010, 1008, 1006, 1005, 1004
1001, 1000, 950, 940, 932, 931, 930, 910, 900, 850, 842, 832
831, 830, 819, 818, 817, 811, 810, 809, 808, 807, 803, 802
801, 800, 744, 742, 741, 740, 732, 731, 730, 719, 718, 717
709, 708, 707, 700, 644, 642, 640, 610, 600, 540, 534, 532
530, 500, 125, 117, 105