It has a recovery system, and and a nose cone. Every rocket has some type of recovery system and a nose cone to reduce the drag. There are certain factors that affect the performance of a rocket. Model rocketeers keep all of them in mind as they construct a kit. The greater the impulse from the engine the higher the rocket will go.
Engines are available in a variety of powers, burntimes and delay times.
The first engine usually a lower power engine is recommended so you can test the stability and get the feel for what the rocket is going to do. If you use a higher power than suggested for your rocket after it has been proven it could go so high that you might loose sight of it and never find it again. The lighter the rocket the higher it will fly and the farther it will drift during recovery. Most rocket kits list the weight of the rocket when complete, provided the instructions where followed. This weight does not include the engine.