Holds 70% more thread than a regular bobbin.Part no: 0334365400
Fit Bernina sewing machine models:4 Series: 435, 475QE, 4805 Series: 500e, 535, 540, 570QE and 590e, 7 Series: 700e, 710, 720, 750QE, 770QE, 780 and 790PLUS
