English: The dolls depicts the gorgeous riding style of the royal family from the time of the Ryukyu Kingdom(1429~1879) on their way to a horse racing ceremony. The dolls are mounted to wheeled bases so they can be played with by pushing them, and the older examples contained a device in the base that would make a ringing noise "ching-ching", which combained with the Japanese word for horse, or uma, give the dolls their name of Chin-chin Uma.