Enjoy hours of fun and learning with the 4M Pump Rocket Science. Inspire young scientists and builders with this air-powered vehicle kit. Build a micro rocket that shoots up to 20 feet in the air, a glider that soars through the sky, and a racer that speeds along the ground. Kit includes plastic bellows, base, exhaust, pipe, racer base with front and rear wheels, foam finned rockets, and stickers. All of the parts are made of safe, high quality materials. This set is recommended for ages 10 years and up.