The PlaySTEAM Water Powered Rocket Kit is loads of fun for all ages! Kids launch the rocket over and over. It provides great outdoor exercise that It is the perfect outdoor activity. Complete with a launchpad, air pump and rocket body, this set simulates a real rocket launch. Use water as fuel for the rocket, pump air into the tank and pull the trigger. Test different angles and amounts of water to see how far your rocket will fly! The Learning Booklet explains about trajectory and provides experiments for children to try. 3...2...1 blast off! No glue or batteries required. Assembled Size - 14.9" x 3.75" x 3.75" Pieces - 16 Learning Booklet - yes