For forward and reverse-feed stitches. For materials such as cord, denim and wool. Guarantees excellent fabric feed. For 9 mm machines.
Compatible with: 180, 185, 200, 435, 450, 640, 730 B 480, B 540, B 560, B 570 QE/QEE, B 580, B 590, B 710, B 740, B 750 QE, B 770 QE/QEE, B 780, B 790, B 790 PLUS, B 820 QE, B 830, B 880, B 880 PLUS