This is a Fukuro obi
with gorgeous decorative pattern, which is woven against gradation base color.
Foil threads included in fabric and the pattern twinkle gently.
Textile is silk, and it has soft to the touch.
Both ends are closed, but there is no lining inside.
There are white spots of mold on blank areas, but they will not show when tied. (sorry no photos)
It has some other flaws as shown on photos.
Please see photos for details.
Overall, it is in very good condition and can continue to be worn!