The magnetic seam guide is made of carefully materials, made of High-quality materials and strong magnets, allowing you to experience seamless sewing. This high-quality, sturdy and easy-to-use magnetic seam guide helps you achieve uniform seam widths. The powerful magnetic seam guide can grab the fabric well and not fall off easily, allowing you to sew straight or curved seams efficiently. The magnets can be easily removed and repositioned, adjusting position as needed and holding securely in place for precise results. With our magnetic seam guides, you seam width every time. Place the magnet on your sewing machine's seam plate and let the fabric slide on the rail for precise control to complete any project with an even seam width. [High Compatibility]: Suitable for almost all popular quilting and sewing machine , it is a versatile tool for your sewing needs. It helps sew straight or curved seams, minimizing errors and completing any project with precision. Material: Metal colour: silver Package Contents: 2 x magnetic seam guides 2 x sewing machine bobbin cases 4 x sewing machine bobbins Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.