This is a conch shell made from a Japanese red top shell (Acanthopleura japonica). It can be blown and produces sound, but it is a small one and does not produce a sound as loud as a conch shell from the Sengoku period. Regarding the production, it has been thoroughly cleaned, disinfected, and processed, but it is a natural product. Please refrain from purchasing if you are nervous or seeking perfection. It is also listed on other sites, so it will be canceled when sold out. Thank you for your understanding. Regarding transactions, no claims and no returns are accepted. SPEC Wooden mouthpiece with urushi lacquer-style finish, blowing hole diameter 20mm The taper of the mouthpiece is cut deeply, and a 6mm pipe is inserted, making it relatively easy to produce sound. Length: Approximately 16cm Width: Approximately 9cm Weight: Approximately 208g