Conch shell Conch shell instrument Conch shell flute Conch shell trumpet 32 centimeters in length Due to the lighter shell, it produces a sound that exceeds its length. It's a large shell. Start by blowing lightly, and increase the strength as you get used to it. It seems that the length and weight of the conch shell affect the sound when it's blown. Please take a look at the photos and consider it. I heard it was very expensive. Originally priced at 38,000 yen, it was reduced to 28,000 yen, but since I have no place to display it anymore, I've further reduced the price to 18,000 yen.