Each BERNINA hook system has its own bobbin cases for
sewing, embroidery and bobbinwork. There is a bobbin to
match each bobbin case.
The 7 Series has two hooks: the B9 hook and the BERNINA
The bobbins for the B9 Hook hold 70% more thread than standard bobbins. This enables you to sew for even longer without interruption.
- D: B710, B750QE, B780