The measurement this foot provides is closer to a true 1/4"
they run on 110 voltage / current
Titled "Sew Portable Travel Set"
If Your Belt Climbs to One Side
if you are wanting even feed of the fabric and batting
Seam Guide, Featherweight Accurate - BLACK case The measurement this foot providesThe "Featherweight Accurate Seam Guide" available in black or clear acrylic. Fits the Singer Featherweight 221, 222, as well as most all other vintage Singer models (i. e. 15, 66, 99, 127, 128, 185, 201, 301, 319, 401, 500, etc.) Each guide 3 16" thickness, and the acrylic helps keep the bed of the machine protected from scratches. Featuring the darling gold decals on a black or clear surface to match the classic Featherweight design. Includes screw