Description There are several types of bobbins on the market. Using the incorrect size and type of bobbin can affect stitch quality and could possibly damage the machine. These metal bobbins are compatible with Bernina machine with a Rotary hook style. Compatible with: BERNINA 940, 950, 1000, 1000S, 1000UP, 1001UP, 1050, 1070 and 1630 BERNINA artista 180 and 185 BERNINA aurora, 435, 450 and 640 BERNINA artista, 200 and 730 BERNINA 560 and 580
