The Cyclone is inspired by the classic lines of a nostalgic wooden roller coaster with a long and suspenseful initial hill climb that leads to a wild ride with many dips and turns. Just like the real thing, once the car reaches the top of the initial hill, it is designed to traverse the whole track back to the starting point, using gravity and potential energy in the most fun way possible. Building this set creates a great opportunity to teach kids about STEM topics. Details: Cyclone roller coaster theme 48" length Over 900 pieces included Gear shaft and crank operated Compatible with the world's leading building block system For ages 14 and up