https://www.mjtrim.com/bobbins-class-15-plastic-4-ct124524 Class-15 Bobbins https://www.mjtrim.com/media/catalog/product/4/2/42610-MULTI.jpg1.5900USDInStock/SUPPLIES/Tools & Color Cards/SUPPLIES/Sewing For removable and top drop-in bobbin cases. Fits all Singer Class
15 models.1.5900add-to-cart