BERNINA Cordonnet Foot #11 is ideally suited for topstitching and decorative work with cordonnet thread or other thicker topstitching threads. The 2-mm-deep groove under its sole allows Cordonnet Foot #11 to glide smoothly even over thicker threads, as well as ensuring even fabric feed at all times. It also enables smooth, precise sewing of sashiko patterns and other decorative designs. TIP: When sewing with Cordonnet Foot #11, use needle with a sufficiently large eye and normal bobbin thread, and adjust the thread tension where necessary. Cordonnet Foot #11 can be used on a large number of BERNINA sewing machines – from the entry-level model up to the BERNINA 8 Series.