This is a 2 part Rocket, Main Body and Head.

Also has 2 prep tools, 1st is a plug for the nozzle, 2nd is a tamper for the baking soda into the rocket.

For the head you will need to a thumb tack. you will need to cut off the back little bump, and super/hot glue it into place.

To prepare the rocket.

1. insert plug
2. add baking soda
3. tamp down baking soda
4. add balloon filled with vinegar
5. screw on head
6. while holding plug in place shake the rocket to make the balloon pop on the thumb tack.