Hands Craft, Electro-Mechanical Wooden Puzzle: Swing Ride with LED lights, amusement park series. Perfect for birthdays, a crafting hobby project, and makes great home or office decor. Build your very own amusement park series. Plays: "Merry Go Round" Puzzle Pieces: 289 Pieces Assembled Size: 5.9 x 5.9 x 10.6 in Assembly Time: Approximately 6 hours Recommended Age: 14 Difficulty: 4 out of 5 Requires 3 AAA batteries to operate (batteries not included).