Product Features:Build your own solar kit with these kits.Six different working models including Solar Revolving Plane， Solar Windmill， Solar Plane， Solar Airboat， Solar Puppy， Solar CarOnly one project can be completed at a time.Great assembling toy for children to practice and empower their brain as well as becoming educated with the benefits of solar energy.Also ideal to express your childs' interest in science， extremely helpful for your children on creative thinking.Solar powered， fun to play with and requires no batteries.Easy to assemble by following the step in instruction.To perform great results， please use under direct sunlight.For best results， use outside under direct sunlight.The kit will not work in cloudy or shady locations or under a fluorescent light.The kit will not work if builted wrongly. Product Specifications:Color: Green with White as shown in the pictureNet Weight: 82gWork life of Solar Battery: 3-5 years approx. Package Contents:1 * Robot Kits1 * User Manual