Class 15 Metal Bobbins (4pk) are crafted from durable steel to ensure long-lasting performance. Designed for compatibility with most home sewing machines, including select Singer, Janome, and Kenmore models. The no backlash spring design offers consistent tension, enhancing stitch quality. For optimal results, pair these metal bobbins with a matching metal bobbin case to maintain stability and reduce wear. Ideal for advanced sewing projects requiring reliable thread management and machine compatibility.
