Harmonica body design: copper chrome-plated silver cover; copper seat plate; phosphor bronze film gong; resin piano, metal plating courtyard mouth. Stylish and generous, it can be played easily. | SW1248: 12-hole chromatic harmonica, each hole blowing and sucking a total of four tones, respectively, three octaves. | The number is printed on the top of the mouthpiece for beginners to find the phoneme. | Precision galvanized parts, durable and rust-free. | The full open design of the bottom of the piano ensures ample volume.