The perfect addition to any K"NEX set, the two battery-powered motors in this K"NEX Education Motor Pack can be used to transform your K"NEX models into moving machines! Now you can motorize your K"NEX vehicles, roller coasters, or any other K"NEX model you have. Make all of your builds more realistic with motorized action and see where your imagination takes you! Each motor requires two AA batteries, not included. The K"NEX Education Motor Pack is recommended for builders age 6 and up. Standard K"NEX parts made in the U.S.A. Special components made in China. Packaged in the U.S.A.