I have various other items for sale too! This is a Buddhist conch shell used in Shugendo practices. It's approximately 37cm long and weighs 751g. I've confirmed that the conch shell can produce a 5-note scale (2 notes of Otsu-on = wood/fire, and 3 notes of Kou-on = earth/metal/water). ♪^o^♪♪❣️ Please take a look at my profile! ^ ^♪♪ The mouthpiece hole is about 6.5mm. 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. The price is based on the cost of the shell.