This is a muffler made of compressed wool that I bought at a used clothing store. It's a muted blue color, giving it a calm feel, and it's the perfect muffler for this time of year. I'm not sure if the material is wool or acrylic. The size is approximately 129cm in length and 12cm in width. It's about 1cm thick and has a lot of volume. Shipping will be via Yu-Packet Plus. Please be sure to ask any questions you may have before purchasing. Color...Blue系 (Blue-based) Pattern/Design...Solid Material...Wool