Can't verify how high this thing launches, but an adult can really get some air under those rockets. The construction seems sturdy enough, nothing has busted or blown out from the pressure. The step pad is made of thick plastic and the rockets are pretty lightweight, yet solid. The weakest point to the whole apparatus seems to be the tubing into the base, which could possibly pinch and damage, but so far, so good. The kids love to take turns launching and trying to catch the rocket while they're falling. Overall, this is a fun launcher that kids and parents will like playing with.