A set of 28 metal bobbins is available for Juki industrial sewing machines. These high-quality bobbins are compatible with various Juki models, including DDL-105, DDL-115, DDL-227, DDL-555, DDL-5550, DDL-8300, DDL-8500, DDL-8700, DDL-8900, DLD-432, DLM-522, DLM -5200, DLM-5400, DLN-412, DLN-415, DLN-5410, DLU-450, and more. They come in a bobbin storage box with a clear top for easy visibility and a foam insert to hold them securely. The box has a hinged lid with a latch for extra security. It is made of sturdy plastic and can hold up to 28 metal bobbins. The color of the box may vary.