This is a conch shell whistle made by processing a sea snail shell in the style of a conch horn. Set of 5. A squeaker whistle is attached to the mouthpiece, so it makes a cute "peep" sound when blown. How about using it as a bear whistle for mountain climbing! Regarding the production, it has been thoroughly washed, disinfected, and processed, but it is a natural product. Please refrain from purchasing if you are sensitive or seeking perfection. It is also listed on other sites, so please understand that it will be removed when sold out. Regarding transactions, no claims and no returns are accepted. SPEC Length: Approximately 5.5~9cm Width: Approximately 3.5~6cm Weight: Approximately 15~63g