Little Treasures 3 in 1 Brine Power Kit &ndash; Watch The Power of Salt Water &ndash; Great Educational Science Kit Brine is synthesized to generate power, which will entertain and enthrall a kid! Learn about power and propulsion, and rates of speed and different options when there are different vehicles built! This kit comes with the ability to build a car, a robot or a windmill, all of which are propelled by brine! Recommended for children who are 8 years of age or older. Made with safe and non-toxic plastic materials  contains small parts keep out of reach of children under the age of 3 years.