Diatonic Harmonica Set Blues Master Series Key: C major Ten holes 20 reeds Reed plates: Phosphor bronze Elegant look with black finish Suitable for beginners and professional players Basics and playing techniques explained simply Dimensions (W x H x D): 100 x 21 x 28 mm Set consisting of: Diatonic 10-hole harmonica in C major Method in four languages: German, English, French, Spanish Soft case and cleaning cloth