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Genuine Highest Quality Clear Plastic Class 15J 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: X52800150
Alternate number: SA156, X52800120, BLG-BOB
Guaranteed to fit because it is a part.