This item is the Complete Water Rocket Launch System.

You get:
Sturdy tripod base.
Pre-assembled pressure chamber
15 foot pull cord
Tiltable Ground Stake
Color assembly and use instructions.

You'll also need a standard bicycle pump with a pressure gauge.

ROCKET NOT INCLUDED - Sold separately as Product Number 7332. Can also be used as additional Launch System for groups. Use with Product Number 7316 6 Piece class Pack.

You supply a PET soda bottle - 24 oz, 1 liter, or 2 liter