(10) Metal Bobbins- Singer Part # 45785
This set of 10 Metal Bobbins, Part # 45785, have an outside diameter of 21.9mm and a height of 7.4mm. The axis diameter is 6mm and they are compatible with Singer Models 221, 222 and 301, 301A, as well as Bernina Models 217 and 540.
These bobbins have a threading hole and are the best on today's market.
