Discover this mesmerizing masterpiece that has been meticulously crafted with interlocking gears. With precise alignment, this wooden piano would be a great addition to any pianist or pianist at heart. This product harmonizes artistry and engineering, inviting you to witness motion transformed into enchanting art while music fills the air. • Assembled size: 5.5"(140mm) x 6.7"(170mm) x 5"(125mm) • Pieces: 223pcs. • Age range: > 14 years old