I have various other items for sale too! This is a Shugendo conch shell. It's about 35cm long and weighs 735g. I've confirmed that the conch shell can produce five musical notes (Otsu-on = 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 ^ ^♪ Free shipping nationwide ^ ^❣️ If you need a text on how to play the conch shell for beginners, please write in the comment section. The price will vary depending on the cost of the shell.