Prym Magnetic Seam Guide
This practical aid at the sewing machine guarantees exact compliance with the seam allowance of the cut or hem. With its magnet it is mounted on the metal plate of the machine at the desired distance to the needle in a reliable and non-slip way and acts as a guide for the fabric edge. Even without further markers you can sew parallel to the fabric or hem. The seaming guide is made of sturdy steel with rounded edges and can easily be removed from the metal plate of the sewing machine by the protruding tab on the back.