This is a conch shell that has been processed from a turban shell. It can be blown and makes a sound, but it is a small one and does not produce a sound as loud as a conch shell from the Warring States period. It can be transformed into a shell whistle by attaching a chirping whistle (see photo 3). Regarding the production, it has been thoroughly cleaned, disinfected, and processed, but it is a natural item. Please refrain from purchasing if you are sensitive or seeking perfection. It is also listed on other sites, so please understand that it will end when it is sold out. Regarding transactions, no claims and no returns are accepted. SPEC Wooden mouthpiece, folk craft processed, blowing diameter 11mm The taper of the mouthpiece is cut deeply, so it is relatively easy to produce a sound. Length: Approximately 16cm Width: Approximately 10.5cm Weight: Approximately 157g