Our beginner harmonica adopts an aluminum shell and a stainless steel cover, which has excellent durability and sound quality. The aluminum cover plate and ABS plastic material ensure the quality and safety of each harmonica.【 Product Size 】 This harmonica measures 4.13 inches x 1.18 inches x 0.78 inches. The mini size allows it to fit in your pocket and you can take it wherever you want to go.【 Safe to use 】 Advanced non-toxic harmonica comb, waterproof, moisture-proof, high hardness, and not easily deformed. This musical instrument is non-toxic, has no small suffocation risk components or accessories, feels smooth to the touch, beautiful and durable.Every harmonica undergoes careful tuning and testing during the manufacturing process to ensure the best sound and quality. This type of harmonica uses special brass as the reed, which can easily produce sound while achieving excellent sound quality.Our blues harmonica is suitable for players of all levels, whether you are a child or an adult, and it is easy to learn. The blues 10 hole harmonica can play various styles, such as blues, folk, rock, country, jazz, etc.