Key of D Russian whistle, fipple flute (svirel) PD01 Wooden whistle iVolga key of D, stabilized wood Wooden fipple flute with no metal fittings. Two octaves range. The scale is diatonic with two additional holes on the back side to play flat 3rd and flat 7th. May be used as common irish whistle (you can cover the back holes with scotch tape etc). Nice round woodsy tone. Materials: stabilized maple Finish: tung oil (inside and outside) Key: D, fixed Range: two octaves Scale: diatonic with additional back holes for lowered 3rd and 7th Length: 300 mm Sound Color and texture of wood on picture may differ slightly from actual item