This is silk wool purchased from a kimono recycling shop. It's in the style of Oshima Tsumugi for men. There were no certificates or tags attached. After purchase, I re-folded it to check the length. I didn't fold it very well. It was at least 18 meters long. There are no stains or scratches, and the texture is good. It's not a flimsy fabric. I was planning to make a skirt, but it's not working out. 42cm (including selvedge) x 18m