Professional Harmonica-Diatonic harmonica with 10 holes and 20 tones for folk, rock, jazz, etc. Harmonica for beginners, children, adults and professional musicians. Superior Craftsmanship-The material of this harmonica is food grade ABS resin silver plated stainless steel cover, by using food grade identification ,it is harmless to the user and sounds great. Easy to Use-The harmonica's built-in airflow manifold helps maintain a constant airflow, making it easy for beginners to play and quickly master more vocal skills. Easy to Clean-After each use of this professional harmonica, it is recommended to spray an appropriate amount of alcohol on the surface and round holes, then wipe with a cleaning cloth to keep it clean