[Note] This volume attachment is suitable for family and commercial purposes. To confirm that the attachment of this roller can work on your machine, make sure that there is a hole on the needle board. [Accurate seam control] Put the magnet on the throat of the sewing machine, and keep the consistent seam width at each time. Unlike the traditional magnetic seam guide rail, our magnetic seam guide not deviate from the route when sewing thick fabrics. [Easily re -positioning] Easily disassemble and regain magnetic guide rails as needed. It is made of high -quality stainless steel and magnets, which is very suitable for marginal protection, positioning, anti -curling, etc. [Multiple sizes] You can choose the curls of 3mm to 10mm to meet your needs. Our curly feet are made of high -quality metal to durability and service life. [Wide application] Very suitable for professional clothing manufacturers and family sewing enthusiasts. It helps to sew line or curve suture to reduce errors. Colour:Silver Material:plastic+metal Package Contents: 6 x Rolled Hemmer Foot 10 x needles 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.