Features: [Premium Material] the harmonica are made of stainless steel covers, brass reeds and ABS comb; it comes out with a pretty good sound, ensures a superior play. [4 Holes 8 Tones] a key of C harmonica with 4 holes 8 notes can be used to play a lot of musics, suitable for harmonica beginners, music lovers, kids. [Compact Size] comes in mini lightweight body, it only measures 3.5*1.3*1.1cm and weighs 0.35oz, comfortable to lips in playing and easy to carry. [Necklace Design] necklace harmonica looks special and stylish, makes you easily keep it in your pocket or wear it as a decorative gadget. [Exquisite Craftsmanship] featured with smooth surface and no sharp edges, this musical instrument is easy to wash and clean.