I am a free motion quilter and I absolutely love this presser foot! I choose this over the BSR.
Came quickly and fit my machine. Just what I ordered. Thank you
Happy with my purchase.

BERNINA Patchwork Foot #37 for piecing straight seams
Clear Embroidery Foot #39C when visibility is key for decorative work
COMPATIBLE MACHINES
Bernina 570 QE/QEE, Bernina 590, B 700 Pro, B 710, Bernina 740, B 750 QE, Bernina 770 QE/QEE, Bernina 770 QE Pro, B 790, Bernina 790 Plus, B 780, B 830, B 880, Bernina 880 Plus