LYSOO 12 PCS Plastic Bobbin Set is specially designed for automatic sewing machines to ensure smooth and consistent stitching performance. Made from high-quality durable plastic, these lightweight and transparent bobbins allow easy monitoring of thread levels while sewing. The precision design ensures proper fitting and smooth thread rotation, reducing thread breakage and improving stitch quality. Ideal for home sewing machines, boutique tailoring, embroidery work, and daily stitching tasks. This 12-piece bobbin set is a practical and cost-effective solution for maintaining uninterrupted sewing work.