Bernina foot number 23, Appliqué foot used for appliquéing with a narrow satin-stitch (up to 2 mm wide)
it's sophisticated design allows the fabric to feed easily over the stitches, even in the case of very dense rows of stitching.
A cutout on the front of the presser foot will hold a narrow couching thread, making for trouble-free sewing of satin-stitching with cording. With its wide thread channel under the sole, Appliqué foot # 23 is also ideal for sewing mini-piping, or for traditional sewing techniques.
And since Appliqué foot # 23 features a clear sole, you’ll have a perfect view of the stitch area at all times – a decisive advantage, especially when following outlines and corners.