See if this works with your machine
High Quality Clear Plastic Bobbins, 11.5 Size - 7/16 inches deep. Security notch for consistent bobbin thread winding. Choose either 10, 30, 50, or 100 bobbins per pack.
Part Number: BAB X52800150
Alternate Part Number: X52800120, BLG-BOB, SA156
Guaranteed to fit because it is a part.