A Jr. Scientist experiment kit that lets you make two different kinds of vehicles, a car and a helicopter, using am “air engine” that runs on power of air. The scientific genius of Leonardo da Vinci is brought to life in this easy to assemble two snap-together plastic versions of an “air engine car” and a helicopter. Taken from the pages of da Vinci’s priceless and awe-inspiring notebooks, this model is made of plastic and requires no special tools. The manual is very educational and teach how these inventions have evolved into what they are today. Two different kinds of mechanics using an “air engine” are explained that run on the power of air. Sounds just like a real engine, harness the power of compressed air to launch items into the air. Science guide included (with 68 color pages).