Set of 25 class 15 metal sewing machine bobbins with storage case, outer diameter 0.8 inch, inner diameter 0.24 inch, outer width 0.4 inch, and inner width 0.39 inch. Made from durable metal with smooth polished edges that help protect thread and provide safe, reusable sewing machine bobbins. A clear plastic storage box keeps bobbins organized, dust protected, and easy to store or carry for sewing and embroidery use. Compatible with many home sewing machines such as brother, singer, janome, kenmore, elna, babylock, and other class 15 machines. This set contains 25 class 15 metal sewing machine bobbins stored in a clear case, each measuring 0.8 inch outer diameter, 0.24 inch inner diameter, 0.4 inch outer width, and 0.39 inch inner width. Crafted from durable metal, the bobbins feature smoothly polished edges to help protect thread and allow repeated use. The transparent storage box keeps the bobbins organized, dust resistant, and easy to carry for sewing or embroidery tasks. Designed to fit many home sewing machines, the bobbins are compatible with Brother, Singer, Janome, Kenmore, Elna, Babylock, and other class 15 models.