Generic Metal Sewing Machine Bobbins Generic Metal Sewing Machine Bobbins White Sewing Machine Bobbins 5 Metal Bobbins In Pack Fits Models: White 4000, White 510, White 690, White 710, Simplicity SL9000, So-Fro 100, Babylock BL7500, Babylock ES1 5701001 4366 Sewing Machine Metal Bobbins 5 Pack