Concealed Zipper Foot - For easy installation of concealed zipper. It's suitable for use with our L14, JS1700, GS2510, GS2700, NX200QE, NX400, NX600, VQ3000, NS10, NS30, NV200, NV400, NV600, QC2000, VM6200D, NV1e, NV1250D and NV950,