Build an intricate player piano out of 223 pieces of laser-cut wood. Wind the key and set the gears in motion to play Canon Variations on the music box. A few of the keys rise and fall, just like a full-size player piano. The half-open lid is embellished acrylic and the piano itself is decorated with Victorian patterns. No batteries or extra tools needed. 4.5-hour assembly time. 5.5"D x 6.7"H x 4.9"W.