Learning through Playing is Fun: Theoretically, the cars should go further and faster as you can blow up the balloons, but the air resistance will also become greater. Dont worry, the kids will figure out the best size of the balloon and make the car run further after continuous trials, and learn more about Aerodynamics at the same time.Keeps Your Kids Engaged in a Good Way: Eager to give your child a break from playing silly games on a tablet or watching videos on TV Give them this toy that will keep them happy and entertained for hours, while you have hours of peace and quiet to do whatever you need to do.Play Together with Your Children: Coming with 2 cars, you can have a competition with your child to see whose car can run further, you will have a great time with your child and you both will grow closer.Makes a Great Gift: Kids will love this balloon powered car and will love you for it. It is nontoxic, well made, which makes it a present parents will love too! Perfect for toddlers and preschoolers age 3+ years old.Package Included: 1x manual balloon pump, 1x plastic cars, 6x balloons in random colors.