The Janome Concealed Zipper Foot 9mm BP is designed to help you achieve professional-quality results when installing invisible zippers, a feature commonly found in ready-to-wear garments. This foot ensures the needle gets as close to the zipper fastener as possible by gently unrolling the zipper just before the needle, allowing for a flawless, seamless finish. Suitable for all fabrics, from delicate silk jersey to heavier wools and tweeds, the Concealed Zipper Foot ensures that the zipper blends perfectly into the seam, giving your garment a polished, high-quality appearance.