This Presser Foot Alignment Gauge is for setting the accurate presser foot position and height on a Singer Featherweight 221 or 222. The
original low shank Singer Presser Foot works best for making adjustments (assuming the foot is in good, balanced condition), but a
new, replica presser foot will work as well. Be sure to review The Featherweight Shop's website for a tutorial on how to use the Presser Foot Gauge properly.