This is an obi (sash) for Ichimatsu dolls, size 10-12. All materials used are antique fabrics. It is difficult to determine the material of the obi fabric, and while I believe it is silk, I cannot say for certain. Thick paper is inserted only in the front part of the obi, instead of an obi board. It appears blue in the photo, but the base color is dark green. Obi dimensions: Front obi: 8cm x 40cm Wing part: 13cm x 17cm Please use it for dressing your doll. Due to the use of antique fabrics, there may be color unevenness or some stains, but please understand this before purchasing.