K'NEX Grandfather Clock Plastic Over 9,000 K'NEX parts|Stands 7 feet tall|Working clock face, swinging pendulum and sound chimes| Includes plug-in motor with AC adapter| Requires 3 'AA' batteries (not included)|Ages 16+ Over 9,000 K'NEX parts Stands 6+ feet tall Working clock face, swinging pendulum and sound chimes Largest K'NEX set ever created For ages 16+