I didn't know how to use it, so I carried it once or twice while wandering around the neighborhood. It was originally included in a lucky bag. (Reduced from 4,499) The center part has a pocket inside and I think it's easy to use. Perhaps it would be easy to use for a flute player. For those who want to walk briskly through the winter streets. Carrying something will straighten your back! I plan to ship via Mercari delivery to those who purchase immediately. Thank you very much!