Check out the Clover Zieman Tool line for many time and work saving ideas and tools. Ultimate Quilt 'N Stitch Presser Foot- The built in stitch alignment ruler measures from .38 in. to 3 in., to allow for multiple rows of stitching without marking every line. Ideal for parallel-line straight stitching, topstitching, and straight-line machine quilting. The low shank foot has a 1/4" seam allowance, and locks in place. This item is not compatible with all sewing machines and may require a specialty adaptor.