Finesse Pre-wound Bobbins are pre-filled bobbins used in Grace and other quilting machines that use M-Class bobbins. These bobbins come with high-quality Finesse thread already wound onto them, which saves time and effort during sewing process. Finesse Pre-wound Bobbins are available in a range of colours to match the different fabrics being used in the project. These bobbins are compatible with most sewing machines, and their uniform winding ensures even tension and fewer thread breaks. They also hold much more thread to cut down on bobbin changes. The Finesse Pre-wound Bobbins are also designed to reduce lint build up and provide excellent stitch quality. The bobbins are wound with precision, ensuring consistent thread tension, and they are wrapped with a clear plastic film that protects them from dust and debris. These bobbins are an excellent choice for both beginners and experienced sewists, as they offer convenience, consistency, and quality. They are ideal for quilting, embroidery, and other sewing projects where precision and accuracy are essential. With Finesse Pre-wound Bobbins, sewists can focus on their creativity and not worry about the hassle of winding bobbins. BOBBINS ARE CLASS M, AND LARGER THAN DOMESTIC MACHINE BOBBINS 80 Yards on each bobbin - each pack contains 12 bobbins Please note, these bobbins cannot be re-used!