I bought this during a trip to Okinawa. It's a cute glass toy with colorful cone shapes inside. I've used it a few times, but it has been disinfected. Please refrain from purchasing if you are particularly concerned about cleanliness. For children, it can be difficult to control the breath needed to make a sound, so adults should blow into it and enjoy the "ping, ping" sound. Please handle it with care to avoid breaking it.