Description: Sewing machine accessories: these sewing machine seam gauges can make your stitches well, even along straight edges, a practical helper in sewing a straight line or circle line, and help organize the fabric for straighter, more exact, uniform seam lines. Durable to use: the material of the magnetic seam guide is magnet and metal, the powerful built-in magnet permits ready mounting and dismounting, more powerful magnets, fixed more firmly, reliable guide for setting seam allowances and sewing straight lines. Specification: Material: iron Size:About 5.3 *2.4cm Package Include: 1PC Magnetic Seam Guide .