This bobbin case is precisely engineered to fit a range of industrial sewing machines, including Consew 206RB, Juki DU1181N and DNU1541, Speedway 1541N, 0303L, 0628, and Jack models H2, H5, H6, 2030, and 2060. Crafted for durability and consistent performance, it ensures smooth thread tension and reliable stitch quality, making it an essential component for professional sewing operations.