See if this works with your machine
A set of 10 M-class bobbins made of a high-quality aluminum. These are made of a high-quality aluminum and will work with most longarm quilting machines and are designed to hold more thread than a regular bobbin, letting you quilt longer without needing to change it.
Part Number: BRO SAQCDMBB
Alternate Number: SAMBOBBIN
Guaranteed to fit because it is a part.