This American style flute consists of two parts. the pipe body and the bird or saddle block. The flow is being controlled by sliding the bird over the top opening. You can make a slight pitch adjustment by moving the bird forward (sharpening tone) or backward (flattening pitch). Make sure you do not completely close the opening. The color of the wood varies, a wonderful sounding instrument. Tuned to F. The length of this flute is 600 mm and the diameter of this flute is 30 mm.