Kashan is a city in Iran. Hand woven rugs with this design come from in or around this city. They come in several different qualities and many different combinations of colors. the most traditional combination however is the blue medallion with a red field and a blue border. These rugs come in all different sizes and are duplicated in India, China, Pakistan, Turkey, and a few other countries as well. They usually are woven with a wool pile and a cotton foundation however sometimes they may have silk highlights or be woven of silk. These are lovely rugs and would make a great addition to any room. Thanks. have a great day.