KaKo’o™ Harmonicas are great for beginners to masters. Our 10-hole professional diatonic harmonicas are suitable for Blues, Folk, Rock, Country, Jazz and so many more! Great for professional harmonica players and beginners, the exquisite workmanship, beautiful appearance, accurate tone and responsiveness are what make a KaKo’o Harmonica the only one you will ever need. Come make music with KaKo’o™ Harmonicas! Ages 5+ Each Harmonica Set comes with 1 x Harmonica (key of C), 1 x Instruction Sheet and 1 x microfiber cleaning cloth. Color Options: Blue, Orange, Red, Silver.