This is an obi締め (decorative cord for a kimono) with a woven classic pattern in a pale gray and subtle red gradient. It hasn't been used much, but has been stored at home for a long time. Regarding the colors: It can be difficult to reproduce the actual colors on a screen, so I will try to convey them as accurately as possible by comparing them to a Japanese color chart. I wrote pale gray, but it's more like a pale celadon green, combined with a very chic bengala (red ochre) color, and a subtle gold thread is woven in, giving it a sense of elegance.