I have various other items for sale as well. This is a Shugendo conch shell. It is approximately 33cm long and weighs 598g. I have confirmed that the conch shell can produce five tones (Oto = 2 tones of wood and fire), (Kou-on = 3 tones of earth, metal, and water). ♪^o^♪♪ Please take a look at my profile. ^ ^♪♪ The mouthpiece hole is approximately 6mm. There are natural growth marks. There are no cracks. Please check the photos ^ ^♪ If you need a text on how to play the conch shell for beginners, please write in the comment section. Free shipping nationwide ^ ^❣️ It's a small size, easy to carry to the mountains ♪♪ The price is determined by the cost of the shell.