Hands Craft, Electro-Mechanical Wooden Puzzle: Tilt-A-Whirl 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: "Wind and Moon" Puzzle Pieces: 280 Pieces Assembled Size: 7.3 x 7.8 x 8.8 in Assembly Time: Approximately 5.5 hours Recommended Age: 14 Difficulty: 4 out of 5 Requires 3 AAA batteries to operate (batteries not included).