Experience the precision and consistency of Bernette bobbins, expertly designed to deliver a constant thread tension for your sewing and embroidery projects. These bobbins ensure impeccable execution of your creative endeavors, whether you're crafting intricate embroideries or undertaking extensive sewing tasks. This convenient pack contains 10 Class 15 bobbins, offering you an ample supply for multiple projects. Notably, these bobbins feature the "J" style, demonstrating versatile compatibility with Bernette b70, b77, and b79 machines. Each bobbin is crafted with a commitment to quality, offering you the Bernette promise of precision, consistency, and reliability. Elevate the quality of your work and enjoy seamless creation with Bernette's professional-grade bobbins.