Features: Plywood construction, the sound is softer than traditional mosaic sound and features less airflow noise Application: Suitable for beginner, practice, competition, performance, gift, hobby collection Gong is made of phosphor bronze, and the nails are hand-stitched. Each piece is carefully installed, making the harmonica sound pure and picturesque. Made of ABS resin material, it is non-toxic, slip resistant and odorless. The cover of the harmonica is directly in contact with the lips, so the cover material is very particular. It is made of 304 stainless steel, and it is not allergic to the human body. Package include: 1 x harmonica 1 x Harmonica box 1 x user's manual 1 x wiping cloth