I have various other items for sale as well. This is a Shugendo conch shell. Length is approximately 33.5cm, weight is 646g. I have confirmed that the conch shell's sound can produce a 5-note scale (Oto = 2 notes of wood and fire), (Kou-on = 3 notes of earth, metal, and water). ♪^o^♪♪ Please take a look at my profile. ^ ^♪♪ The mouthpiece hole is about 6mm. There are natural growth marks. There are no cracks. Please check the photos ^ ^♪ If you need a beginner's text on how to play the conch shell, 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.