It is an autumn festival of the famous “Arita-yaki.”
Various events are held all over the town in Arita.
About Arita-yaki (Wikipedia)
Imari porcelain (伊万里焼) is the name for Japanese porcelain wares made in the town of Arita, in the former Hizen Province, northwestern Kyūshū. They were exported to Europe extensively from the port of Imari, Saga, between the second half of the 17th century and the first half of the 18th century. The Japanese as well as Europeans called them Imari. In Japanese, these porcelains are also known as Arita-yaki (有田焼). Imari or Arita porcelain has been continually produced up through the present day.