Fits all Singer Class 66 models and some of the following machines: Baby Lock, Brother & Simplicity. Bobbins not compatible with the following machines: Bernina, Elna, Husqvarna/Viking, Janome/New Home & Pfaff. Use only the same type metal or plastic bobbin that came with your machine.

Fits all Singer Class 66 models and some of the following machines: Baby Lock, Brother & Simplicity.