A. This harmonica is light and compact, and can be easily held in the palm of an adult's hand, allowing you to enjoy wonderful music anytime, anywhere. The harmonica's cover is made of stainless steel, which is durable. It also comes with a plastic harmonica case to keep the harmonica safe and clean, making it a good choice for music lovers. B. Here are some tips for harmonica maintenance: 1. It is advisable not to drink thick or sugary drinks while playing the harmonica. 2. Rinse your mouth, wash your hands, and brush your teeth if necessary before playing the harmonica. 3. Store the harmonica in its case or other clean places when not in use. 4. After playing, hold the harmonica with the holes facing down and tap it gently to remove excess saliva. 5. It's better not to let others play your harmonica, unless you don't mind having "intimate contact" with them through the harmonica. 6. Note that while bending can produce wonderful sound effects, it may cause the reeds to go out of tune. Operate carefully when bending. 7. Try to avoid exposing the harmonica to heat or direct sunlight. 8. Do not clean the harmonica with hot water, alcohol, or other reagents. C. Product specifications: - Type: Diatonic harmonica - Number of holes: 10 holes - Tuning: Key of C - Cover material: Gold - colored metal - Reed material: Stainless steel - Plate material: Stainless steel - Comb material: Plastic - Case material: Plastic - Product dimensions: 10 * 2.7 * 2 cm (3.9 * 1.1 * 0.8 inches) - Product weight: 53 grams (1.9 ounces) - Color: Gold - Material: Stainless steel + plastic D. Package contents: 1. 1 harmonica 2. 1 cleaning cloth 3. 1 packaging box Only the above package contents are included, and other products are not included. E. Notes: 1. Due to differences in lighting and monitors, the actual color of the product may vary slightly from the picture. 2. A measurement error of +/- 1 - 3 cm is allowed for the dimensions.