SINGER SEWING MACHINE RUFFLER: The Ruffler is used to create perfectly spaced pleats and gathers. The Ruffler makes uniform pleats at set intervals Ruffler works best with light to medium weight fabrics. SINGER RUFFLER with DIMENSIONS: The Ruffler dimension with 3 x 2 x 2 inches and Item weight 4 ounces. COMPATIBLE with LOW-SHANK SEW MACHINES: The Singer Low shank sewing machine compatible with SINGER M1, M2, M3, and M4 Series and SINGER C1, C2, C3, and C4 Series. For use with low-shank sewing machines, including brands Babylock, Bernina, Brother, Elna, Euro-Pro, Husqvarna Viking, Janome, Juki, Kenmore, Necchi, New Home, Pfaff, Simplicity, White SINGER INSTALLATION: Downloadable instructions and video tutorial available on this product page. Downloadable instructions and video tutorial available on this product page