See if this works with your machine
The Magic Bobbin Genie eliminates backlash and bird's nests on the underside of free-motion quilting, thread painting and embroidery when changing directions at high speed. Super slippery, durable teflon!
Easy to use! Remove your bobbin and drop a Magic Bobbin Genie into your machine. Replace bobbin and you're ready to sew!
TOP DROP-IN BOBBINS - Fits L and 15J Class
Part Number: CHE DG12
Alternate Part Number: 748252840509
Guaranteed to fit.