Here39s a great outdoor which we predict will be seen in parks and outdoor spaces all over during the warmer weather this high performance air pressure powered rocket launching set will launch a rocket up to 400 into the air without the use of batteries or fuel all is needed is a person to jump with great vigour onto the air pressured launch pad and up it soarshigh performance air pressure powered rocket launching setjump on the launch pad to send a rocket up to 400ft into the airno batter