My Bernina came with a case to store my bobbins but I usually put them in a little metal case by my machine. I used the method to keep them neat that was posted about a while back. You buy clear 3/4 inch hose and cut little sections off with an exacto knife and then cut a slit through 1 side. The little ring slips over the thread and has an added bonus for me. I use a sharpie to write what kind of thread is on the bobbin. I don't know if you can see it in the picture but the blue has Aurifil written on it.