Walking Foot Deluxe, Low Shank, BLDW-L, Fits B,D,G,H [500] NLAThis exclusive foot includes feed dogs that control and guide multiple layers evenly. It includes three interchangeable soles, a standard sole, open toe sole and stitch in the ditch sole, as well as two quilting bars to guide your top stitching in either direction. *For high shank machines attach the adapter (included with the machine) to the presser bar first. Case Contains: Walking Foot with standard sole Open toe sole Stitch in the ditch sole Two