This bobbincase is made specifically to be used during machine embroidery. The Rotary Hook is one of the four different hooks and has different bobbins and bobbin cases for different purposes. They are required for the following machines:

• BERNINA 1000, 1000S, 1000UP, 1001UP, 1070 and 1630
• BERNINA artista 180 and 185
• BERNINA aurora, 435, 450 and 640
• BERNINA artista, 200 and 730
• BERNINA 560 and 580