Erector Set Special Edition is a kit that was developed with the experienced Erector modeler in mind. The idea behind these sets is to offer the builder everything they need (including illustrated directions) to construct models of rockets, cranes, helicopters, race cars, airplanes and famous buildings and bridges around the world. These sets offer many hours of fun and satisfying play time. Includes a 6v motor, assemble tools, and 643 parts to build 25 motorized models. Ages 8+.