Feature: 1. Double Row Nozzle Design: The Double row nozzle design can effectively control the airflow and make the sound more full and layered. 2. Plywood Design: Plywood design, stable structure, multi point support, strong air tightness, richer sound, stable structure and strong air tightness. 3. Resin Material: The resin material has a clear texture and a comfortable feel, which is more convenient to use during the performance. 4. Good Conduction Effect: The plywood design base is different from the traditional mosaic design, the metal conduction music effect is better, crisp and distant. 5. Firm Structure: The harmonica is fixed with 13 screws and 2 screws for fixing the cover, which makes the whole structure more firm and ensures the airtightness of the harmonica. Specification: Item Type: 28 Hole Polyphonic C Key Harmonica Material: Stainless Steel, Resin, Copper, Plastic Product Total Length: Approx. 21cm / 8.3in . Package List: 1 x Harmonica1 x Wipe1 x Storage Box1 x User Manual