These Janome Blue Bobbins with Storage Case are available as a special limited-edition item. Janome Blue Bobbins with Storage Case comes with twenty five blue Janome J bobbins and is packaged in a Janome brand blue motif organizer for easy carrying and storage. The Janome J bobbin in Janome Blue Bobbins with Storage Case is made of a special rubber and plastic combination which allows them to better hold threads, absorb machine vibration and reduce noise. Janome J bobbins fit all standard Janome sewing machines, except the MB4 and 1600 series machines. Offer Valid to United States Destinations only.