The Zipper Foot is the most important zipper tool and will help you stitch the zipper perfectly in place. When attaching any zipper, it is important to sew right next to the edge of the zipper teeth. You can do that with the special Zipper Foot. It can be snapped onto the left or right of the sewing foot ankle, as needed. Fits D,E,G,J,K*,L K* except SMARTER BY PFAFF 260c, 160s, 140s