Features: -Place the magnet on the needle plate of your sewing machine to ensure a consistent seam width every time. -Strong magnetism ensures it stays on track when sewing thick fabrics, making it a versatile tool for your sewing tasks. -Made of high quality stainless steel, rust-proof, corrosion-resistant, wear-resistant, long service life. -Great for edge protection, positioning, anti-curling, etc. -All popular sewing machine brands are compatible, making it perfect for the professional garment maker, home sewing enthusiast, apparel student and more. Specification: Colour: silver Material: stainless steel Size: 1.3*3.07 inches Package Included: 1x Magnetic seam guide .