This is a Fukuro obi
with gorgeous flower circles and Hanausagi with Michinaga-dori ( shape of segments of Washi papers ) pattern, which is woven.
'Raden'(design in mother-of-pearl inlay) is accented on part of Tare end, Otaiko and Maegara patterns, and they shine by angle of light.
Textile is silk, and it has soft to the touch.
Stains on blank part are there, but they will not show when tied.
It has some other flaws, such as folding lines, as shown on photos.
Please see photos for details.
Overall, it is in very good condition and can continue to be worn!