Thank you for looking. There is no silk material certificate, but it is a plump Hakata weave? Modern geometric pattern. This is a 6-way patternシャレ袋帯 (share bukuro obi) without a core. It has been used a few times. There is some feeling of use, and one inconspicuous stain on the side. I have taken a picture of it in the 13th photo. Overall, I think it is in beautiful condition with no noticeable stains or dirt to mention. It is a very easy-to-tie obi. This is a pre-owned item that has been stored at home, so please only purchase if you understand this. Silk material Width 31 cm, Length 425 cm