Blow them up and let them go!
This Balloon Powered Vehicle Set will keep your little scientist busy for hours.
Watch balloon helicopters spin through the air, rocket balloon tiger tails zip across the sky, and racing balloon car racers speed across the ground. Hear them whistle and watch them zoom!
Learn about physics the fun way with a Balloon Powered Vehicle Set which includes 2 copters, 2 racers, 31 rocket balloons and an air pump.