Vertical Stitching Alignment Foot - The marked ruler lets you measure the distance from the needle. 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.