A Magnetic Seam Guide is a small sewing machine part that attaches to the stitch plate of a sewing machine, near the presser foot. This curved magnetic seam guide features a powerful non-slip magnet that ensures uniform seam width on all sewing machine models, helping to create the perfect seam, tuck, and pleat without marking. Its easy-release magnetic guide allows it to be quickly removed or repositioned to any position on the metal throat plate of the sewing machine.