♪♪ The Kokiriko bamboo is seven and a half sun long, Long sleeves are a hindrance. The San-sa of the window, Dederokoden, The San-sa of the celebration, Dederokoden ♪♪ This is a seven and a half sun (approx. 23cm) Japanese instrument that appears in the famous "Kokiriko Bushi" folk song from Toyama. It is made of bamboo. You hold one in each hand and strike them together to play. I purchased it in Toyama about 5 years ago. There are no smokers or pets in the house. Please understand that this is a used item before purchasing. Thank you for looking.