Seam Guide Magnetic from Dritz

These extremely fine guides give the best versatility to the user.  Magnetic seam guides are the best for allowing you to sew narrower than the width of the presser foot.  It can stitch perfect seams along straight edges and curves.  The powerful built-in magnet permits ready mounty and dismounting.  This makes it ideal for stay stitching.

Magnetic seam gauge, deluxe type, easy to mount and easy to remove.