Foot #3C Classic Buttonhole Foot
BERNINA Buttonhole Foot #3C - Buttonhole foot #3C is the natural choice for easy sewing of buttonholes with and without cording, and is also ideal for gathering with cord.
B 570 QE/QEE, B 590, B 710, B 740, B 750 QE, B 770 QE/QEE, B 790, B 790 PLUS, B 780, B 830, B 880, B 880 PLUS