Quilting / Patchwork Foot with 1/4" Guide For Singer 221 Featherweight Sewing Machines. A popular foot with patchworkers for that essential 1/4 inch seam. The guide on the foot enables you to sew a perfect 1/4 inch seam every time. The guide can also be used wherever a 1/4 inch seam is called for but the markings on the needle plate cannot be used, such as when completing a flat seam. Fits Alphasew models : 221 Fits Singer models : 15-91, 185, 201, 221 Featherweight, 222, 222K