Leave the past behind with the Revolution Ferris Wheel Building Set, from K'NEX. This motorised, rail-driven rotating Ferris Wheel can spin both clockwise and counterclockwise at two different speeds. This set comes with 344 parts, primarily rods and connectors, to build a K'NEX thrill ride. And if collect the Clock Work Roller Coaster Building Set and the Infinite Journey Roller Coaster Building Set (sold separately), you can have a working amusement park right in your home! Requires 2 "AA" batteries, not included. Perfect for builders ages 7+.