The reed and the seat of the harmonica are made of aluminum, the piano cover is made of stainless steel, and the piano material is made of resin. After tone correction, the harmonica has a basic intonation. This product is very suitable for infants and young children to learn music. The reed and the seat of the harmonica are made of aluminum, the piano cover is made of stainless steel, and the piano material is made of resin. After tone correction, the harmonica has a basic intonation. This product is very suitable for infants and young children to learn music. specification: Material: aluminum, stainless steel, BA, resin Net weight: 48g Size: 10.3 * 3 * 2mm Color: silver&white Package Included: 1 10-hole harmonica