Featherweight Accurate Seam Square
This Square works for the Singer 301, 15, and any machine that threads from right to left through the needle. Seam Square will accommodate a size 90/14 needle and smaller. Seam Measurements include: 3/4 in, 5/8 in, 1/2 in, 3/8 in, 1/4 in and Scant 1/4 in. 1/8 in is included as well, however, the narrow 1/8 in measurement will only work with a zipper or cording foot and not the original presser foot.