I have various other items for sale as well. This is a large conch shell used in Shugendo practices. It is approximately 39cm long and weighs 942g (^.^) ♪♪♪❣️ The hole for blowing is about 6mm. It has natural growth marks. There are no cracks. Please check the photos. It's a beautiful and well-balanced❣️ large conch shell used in Shugendo practices (^.^) ♪♪ I have confirmed that the conch shell can produce a five-note scale (Otsu-on = 2 notes of wood and fire), (Kou-on = 3 notes of earth, metal, and water). If you need a beginner's text on how to blow the conch shell, please write in the comment section. I will include it for free. Free shipping nationwide❣️ The price may fluctuate depending on the cost of the shell.