I have various other items for sale too! This is a Shugendo conch shell. It's approximately 36.5cm long and weighs 823g. I've confirmed that the conch shell can produce a 5-note scale (Oto = wood and fire, 2 notes), (Kou-on = earth, metal, and water, 3 notes). ♪^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 ^ ^♪ Free shipping nationwide ^ ^❣️ If you need a beginner's text on how to play the conch shell, please write in the comment section. Due to the high cost of the shell, this is the price.