H. Rosewood Grade A+ Soundboard (width x thickness): 58 x 25 (L) to 39 x 21 (T) mm Register/Key: A25-C76 4 and 1/3 octave, 52 keys Size：185(W)×85(D)×82-93(H)cm Screw-fastening height adjustment mechanism Weight：48kg Resonance tube: Aluminum alloy, acrylic baking paint *In case of arched tube specification, +JPY16,500(15,000) Frame: Wood & steel