Function: 1 The thick plate securely wraps the lead and secures it with multiple screws to enhance the airtight seal of your harmonica 2. This C key harmonica is easier to play and the sound will be more richer and softer 3. Harmonica is tuned by a professional tuner. In addition to professional configurations, you will be more concerned about how you feel about sound quality 4. The double row blow hole design can effectively control the airflow of blow and suction so the sound of harmonica is more layered and full 5. Made of high quality resin material, more environmentally friendly and reliable playing Specifications: Item Type: C key harmonica Color: Silver, Blue, Black(Optional)