BERNINA LEGACY Adjustable Ruler Foot #72. Fits BERNINA machines that do not have manual threader. This foot allows you to sew along Plexiglas rulers to create decorative quilt designs such as lines, feathers, circles etc. Decorative quilt designs such as lines, feathers, circles etc. are created using a 1/4 in. thick Plexiglass ruler; markings on the inside and outside for simple, precise sewing. The dial lets you adjust the height of the foot individually to the fabric thickness. For 5.5 mm and 9 mm machines. Bring your free-motion quilting creativity to the next level with BERNINA’s Adjustable Free-Motion Feet!