Specifically designed for multifunctional household sewing machine 307 series, ensuring secure thread clamping during sewing to unraveling and knots strong clamping force and high durability, ensuring smoother sewing operations and significantly boosting work efficiency Features innovative and structure to provide consistent tension and stability during operate, minimizing sewing errors and improving finished product An ideal option for various household sewing tasks such as garment making and clothing repairs, helping users easily complete creative sewing projects Made from rigorously tested with excellent wear resistance and resistance, ensuring long lasting even with frequent use