Black Gloss Baby grand with pianodisc Pianodisc fitted as standard solid spruce soundboard active area cast iron plate spruce morticed beam birch/maple rim quarter saun maple treble bridge 17-ply pin block hard maple parts natural skin knuckles backchecks extruded aluminum rail 5 die-cast brackets spruce key sticks Cross laminated Keys individually balanced&lead-weighted keys T-pinned reinforced hammers virgin wool felt hammers shift,bass,sustain