This is a great rocket that always performs well. I was skeptical until I saw it fly at a club launch. Loved it and bought one for my grandson. Easy to build and reliable in flight. Rocket goes up, drops off the glider and parachutes back down. Depending on the wind conditions, the glider typically makes big descending loops around and around until it reaches the ground. Often it circles the rocket under the parachute. It’s always a crowd pleaser. Boost gliders can be tricky to make work right, but Estes has this one trimmed out to perfection. Great introduction to that side of rocketry.