Your go-to presser foot for parallel-line straight stitching and straight-line machine quilting. Features Presser foot with built-in alignment ruler for guiding rows of parallel stitching Ideal for parallel-line straight stitching, topstitching and straight-line machine quilting Note from Team Nancy: Easily stitch multiple rows of stitching without marking every line How To Use Attach with the low shank Move the ruler to set distance between needle and alignment guide 3/8" (9.5mm) to 3" (76.2mm) The foot has a 1/4" (6.4mm) seam allowance Align guide to previous marked line or previous stitching line *Presser foot may require your specific sewing machine company's specialty adaptor. Not compatible with all machines Materials Polyacetal Polycarbonate Stainless Steel