Fits the Featherweight! Stitch your 1/4-inch seams easily with the foot that has a little guide to keep your fabric edges perfectly aligned, or scrolling through the photos above, you can see how it can be nicely used for understitching, depending on how you align it to your seam.  Foot will either have a chrome or black guide depending on inventory available at time of order. 

LOW SHANK:  fits the Singer Featherweight 221, 222K and all low, vertical shank Sewing Machines (i.e. 15, 27, 28, 66, 99, 185, 127, 128, 192, 201, 206, 237, 306, 319, 320, 328, as well as many other brands besides Singer)