I have various other items for sale too! This is a Shugendo conch shell. It's approximately 34cm long and weighs 563g. 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! ^ ^♪ This is a Shugendo conch shell that's easy to carry around ^ ^♪❣️ Free shipping nationwide! ^ ^❣️ If you need a beginner's text on how to play the conch shell, please write in the comments section. The price is based on the cost of the shell.