A wind-bell is called a furin in Japan. A furin is a small bell made of metal or porcelain that hangs and rings in the wind. These wind-bells give poetic charm to the Japanese summers. In the sultry summer season people hang wind-bells from the edge of their eaves. Then people enjoy the cool when the furins swing and ring in the breeze. There is also a fancy strip of paper called tanzaku that hangs from the bell’s clapper. When a breeze comes, the tanzaku swings and causes the clapper to hit the bell. This results in the bell’s ringing.
There are haiku written on the tanzaku. Haiku are poems written in 17 syllables, which must consist of three phrases of five, seven, and five syllables. Writers must express their feelings and a sense of the season in these few syllables. Every haiku must include a word or phrase about the season, which is called a kigo. This is done to express a sense of the season. The haiku written on the tanzaku make the wind-bell more tasteful. Thus, wind-bells are closely associated with haiku and the expression wind-bells can be used as a kigo for the summer.