Standard supplied with three different cams, suitable for 2 step, 3 step and 4 step zig-zag; Extreme wide zigzag width (16mm); Powerful walking foot mechanism insures the smooth feeding of hard-to-feed materials or multi-layered sections of materials to achieve consistent seam quality that is free from irregular stitch pitches. For decorative or functional stitch on leather sofas, car seat covers, luggage, shoes, industrial safety product and leather goods.