Ceramic Cover&Food Grade ABS Comb: Environmentally friendly and non-toxic, resistant to deformation and rust, with stable resonance and reliable airtightness. Ceramic Cover&Food Grade ABS Comb: Environmentally friendly and non-toxic, resistant to deformation and rust, with stable resonance and reliable airtightness. Unique Basic 10-Tone Design: Convenient for beginners and performers to quickly get started, easily grasp breath conversion and maintain smooth airflow, playing perfect pieces. Various Music Styles: Jazz can perfectly handle blues, folk, pop classical, jazz, country, and rock music, and can be easily used in various performance scenarios. High Quality Service: Kongsheng Instrument Company has always been committed to creating high-quality harmonicas, better serving, and continuously innovating to provide more and higher quality products. Whenever you encounter any problems, we will stand with you forever.