Estes t bolt air powered rocket estes d es1900 p simply twist together the air tubes stand back and have fun the t bolt air rocket requires no assembly and is a blast to launch p p the t bolt is supplied complete with a high volume launch pump and sturdy launch pad made of durable high grade plastic p p iframe height 315 src www youtube com embed ewdfvamksca rel 0 frameborder 0 width 560 allowfullscreen iframe p estes d es1900 t bolt air rocket launch set