The Interchangeable Dual Feed with Changeable Presser Feet is designed to feed layers of fabric and/or batting evenly. It is perfect for quilting, sewing velvet, some stretch fabrics, imitation leathers and fabrics which need accurate pattern matching. Use the Changeable ¼” Guide Foot for straight stitch and hand look quilt stitch. The guide will help you keep ¼” (6mm) distance.