Item Type: Harmonica_x000D_Material: Chrome Plated Copper Plate, Resin_x000D_Size: Approx.102x27x19mm/4x1.1x0.7in 110 Hole C Key: The harmonica is 10 hole key of C, ideal for beginners or professionals, very comfortable to hold and touch. 2Clear Sound: The harmonica is responsive, stable in pronunciation, sound outputs clear and bright, very easy to play. 3Clear Numbers: The sound hole is marked with clear numbers, which is convenient for children and beginners to learn. 4Exquisite Appearance: All inclusive streamlined designed, the mouth organ is exquisite and beautiful in appearance. 5Premium Materials: The harmonica is made of premium chrome plated copper plate and resin, with good stability, can be used for long time.