Designed by Yamaha in Japan Crafted by Yamaha in Indonesia Soundboard: Solid Spruce Soundboard Ribs: Spruce Back Posts: 5 Bridge Construction: Two-piece separated Wood seasoned for destination: Yes Frame: V-Pro Vacuum Shield Mold Process Key Material: Seasoned spruce White Key surfaces: Acrypet™ Black Key surfaces: Phenolic Resin Pedal: Soft/Mute/Damper Caster: Single Weight: 522.5 lbs (237 kg)