Walking Foot w/Guide, Low Shank, Singer #P60400A walking foot, also known as an even feed foot, has built in feed dogs that grip and move the fabric in unison with the sewing machine's main feed dogs. This presser foot helps keep the layers from shifting apart as they move through the sewing machine. A walking foot is essential for pucker free, straight line quilting. It is a great accessory to have when working with heavy fabrics and when sewing together multiple layers. Guaranteed to fit