I have various other items for sale. This is a Tokamuri conch shell. It's approximately 21cm long and weighs 803g (^.^). Because it has incorporated small stones during its growth, it makes a rattling sound when shaken, but this does not affect the sound it produces at all ^ ^♪♪ I have confirmed that the conch shell can produce five tones (Otsu-on = wood and fire, two tones), (Kou-on = earth, metal, and water, three tones) ♪^o^♪♪ Although it's small, it produces a powerful tone! Especially the low tones (Otsu-on) resonate quite a bit ^ ^♪ Whoosh♪ Like in the Sengoku period. Please take a look at my profile ^ ^♪♪ The mouthpiece hole is about 6mm. There are growth marks. There are no cracks. Please check the photos. This type of conch shell is also used by high school students in the Japanese drum club and music club. If you need a beginner's text on how to play the conch shell, please write in the comment section. I will include it for free ♪♪♪ The price is determined by the cost of the shell.