Quest's Water Rocket Starter Set includes a launch pad and the parts to convert plastic (PET) soda bottles (24 ounce, 1 liter, or 2 liter) that you supply into a flying water-powered rockets.
There's no-cost per launch because you get your rocket fuel from your own faucet. You can fly them over and over. You control the flight performance by varying amount of fuel and pressure. The water bottle rocket flies to over 200 feet.
Included in this starter set are supplies to build six water rockets from plastic soda bottles (not included) and a complete launch system. The kit includes six pre-cut rigid foam fin sets, six translucent molded nozzles, six foam recovery bumpers, a handy measuring flask, and a complete launch system. You'll need a standard bicycle pump with a pressure gauge.