This Japanese bamboo Kachi Kachi Obon Odori castanet is hand made in Japan out of bamboo. The outside is natural bamboo and the inside is painted red. Some of the castanets may have natural dents from the bamboo but this will not affect the clacking sound. This type of castanet are traditional used by professional Japanese dancers. They are affordable enough for anyone to enjoy. A quality fun castanet is a must have for the Obon festival. This is a set of two castanet.