Replacement stainless steel bobbin cases designed for reliable sewing performance. These compact silver bobbin cases are wear resistant and durable, built to resist deformation during regular use. They are easy to install and remove, making them suitable for both beginners and experienced sewers. Key benefits Prevents thread tangles and unraveling when starting and stopping the sewing machine, reducing interruptions and rework. Durable stainless steel construction provides long service life and repeated reuse for consistent bobbin thread winding. Small, compact size fits into standard bobbin compartments and simplifies bobbin changes to improve workflow. Features Size: 2.20X2.20X1.50cm / 0.86X0.86X0.59in for compact and consistent fit. Material: stainless steel for strength and wear resistance. Color: silver. Easy to install and remove, suitable for novices and professionals. Compatible with most consumer and light industrial sewing machines on the market. Use scenarios Home sewing and crafts: keep extra bobbin cases on hand to switch thread colors quickly during garment or quilting projects. Tailor or alteration : worn bobbin cases to reduce machine downtime and maintain consistent stitch quality for customer garments. Small production or hobbyist workshops: maintain a set of spare bobbin cases to speed up production when multiple machines are used. Package and product details Number of Items: 5 Package list: 10 x Sewing Machine Bobbin Cases Suitable as replacement parts or spare supplies for everyday sewing and embroidery tasks. These bobbin cases are practical sewing accessories that help maintain smooth thread delivery and consistent stitch results across a range of common sewing machines.