I have various other items for sale too! This is a compact Shugendo conch shell. It's approximately 31cm long and weighs 531g. It produces clear Oton and Koton sounds♪^o^♪♪❣️ Please take a look at my profile if you'd like ^ ^♪♪ 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 is based on the cost of the shell.