The Kestrel Flute in the key of “D” minor is made from Walnut wood, which is a hard wood. It is sealed with non-toxic oils giving it a clear, bright voice. It is a highest key of “D” flute we make and is a good accompaniment flute for the Condor Bass “D” flute. The key of “D” is the primary key for Penny Whistles making this flute a very versatile instrument for playing various music styles. Its hard wood body and compact size make it an ideal flute for travel or hiking. It is 15″ long. This is a 6-hole flute, we cover the 3rd hole from the top of the flute (known as the 6th hole) with a leather tie, giving the option to use it as a 6-hole or a 5-hole flute.