A set of 28 metal bobbins is available for Juki industrial sewing machines. These bobbins are suitable for various Juki models such as DDL-105, DDL-115, DDL-227, and more. They come in a bobbin storage box with a clear top for easy visibility of the thread colors. The box has a hinged lid with a latch for secure closure and easy access. It also includes a foam insert to hold the bobbins in place. The color of the box may vary.