This is a red, white, and blue Ferris Wheel with a rubber band pulley system to turn the wheel with the crank. There are twelve carts which spin independently as the wheel turns. The parts are divided into three print jobs--one for each color--and are intended to be printed on a MakerBot Replicator (5th Edition). Lots of assembly required! Gorilla Glue is recommended for assembly, but many pieces can rely on friction to snap together.