Bamboo used for Chiku-shin Shakuhachis are made from high quality madake bamboo harvested in Japan. Good madake for shakuhachi is very difficult to find. It is usually found in the high mountain regions in Japan. Once collected, it needs to be placed over warm hot coals in order to (extract )the natural oils from the bamboo. Then, it must be left in the sun for several months to dry even more. Then, they are stored into a cool area and left for 2 to 5 years before it can even be used to make a shakuhachi. Therefore, just a bamboo shakuhachi blank can cost up to $200 or $300 US dollars.