20 Singer Sewing Machine Drop in bobbins

OF EXCELLENT QUALITY

METAL BOBBINS

These will fit many Singer machine including the older ones IE:-

Singer Models: 66k, 99k, 185k, 201k, 217,219,257,274,275,285,286,315,317 327, 328, 329, 401, 403, 404, 413, 416, 418, 466, 476, 477, 478, 513, 514, 518, 522, 527, 533, 534, 538, 560, 714, 717, 719,734, 774, 776, 814, 834, 4610, 6212, 6214, 6215, 6217,6233, 6100, 6700, 7100, 8100

plus MANY OF THE LATER DROP IN STYLE MACHINES

These are more dome shaped than normal universal bobbins