Construction TypeSuitcase Harmonium SizeOthers Body FeaturesCoupler Knob ,Stops and Drones ,Scale Changer Wood TypeTeak Additional FeaturesHarmonium is made from well seasoned teak wood & has 3 octave shiftable keyboard with 9 scale changer folding type with coupler system. Fitted with 3 sets of premium reeds Bass-Middle & high frequency, for very fine and clear concert quality sound and tone. Well fitted for long sustaining sound. Fine crafted brass Chrome handmade fittings. Push button system to allow the instrument to collapse in a well-crafted box fitted with combination locks case.