The jizaigaki is the hook from which an iron kettle for making tea is suspended. It is found in the heart of the home above the irori or sunken hearth where a family gathers and guests are welcomed. While the aesthetics of tea ceremony utensils became viewed with increasing importance, kettle hooks were also increasingly formed with elaborately finished woods. Zelkova (keyaki) is the most expensive and prized wood with a beautiful dense grain pattern.
The present J-shaped hook is named after one of the Seven Gods of Luck, Ebisu, because it resembles the form of his tall hat. Ebisu is a god of wealth, fishermen and guardian of health in small children. He is often portrayed with a fishing rod and a red carp.