Zipper Sole #4 makes quick work of inserting zippers neatly and precisely. Its narrow, centrally placed toe allows Zipper Sole #4 to get very close to the zipper coils, enabling it to attach the fabric securely. The result is a perfectly inserted zipper with a consistent stitch pattern.
Thanks to its narrow shape, Zipper Sole #4 is also suited to sewing on piping and snap tape, as well as edgestitching.