Create A Robotic Racer Using The 4M Salt Water Powered Robot Kit. This Robot Kit Is A Hands-On Learning Experience That Illustrates The Value Of Alternate Energy Sources. The Robot Is Powered By The Chemical Reaction Of Salt Water And Charcoal, And Is Safe And Non-Toxic. This Kit Contains All The Parts And Materials Needed To Create A Salt-Water Powered Robot. Detailed Assembly Instructions Included. Recommended For Ages 8 Years And Up. Learning Skill: Creative Thinking Measurements: 2.5 Width/Inches, 8.5 Length/Inches Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported