- Perfectly Spaced Pleats / Gathers - Easily adjust Closeness & Depth - Light to Medium Fabrics - Fits Singer M1, C1, E1 series The Ruffler is used to create perfectly spaced pleats and gathers. The Ruffler makes uniform pleats at set intervals. The Ruffler can tuck every twelfth stitch, sixth stitch, every stitch or not at all! The Ruffler works best with light to medium weight fabrics. Move the Ruffle Regulator to determine the frequency of tucks. The Ruffler can tuck every twelfth stitch, sixth stitch, every stitch or not at all! Turn the Adjusting Screw to determine how much fabric is pushed into the attachment each time it tucks.