HONEYSEW ButtonHole Foot Low Shank WILL FIT ALL LOW SHANK AND SNAP ON SEWING MACHINES 7302L WILL FIL ALL LOW SHANK SNAP-ON SEWING MACHINES Eliminate buttonhole markings; use the red measurements to make a properly sized buttonhole  plain or corded. The grips on the underside of the foot help feed your fabric for a beautiful result. The sliding frame of the foot provides improved fabric guidance while the buttonhole is being stitched. The red marker (slide) makes it very easy to reproduce identical buttonholes when buttonholes are stitched "manually" (like on mechanical models) The foot is designed to hold gimp for easy corded buttonholes.