With LEGO's Technic Jet Plane set, there are 2 ways to build. Construct an aerobatic plane complete with propeller and landing gear that can be lowered and raised. Move on on build the supersonic jet plane with similar moveable landing gear, raising and lowering cockpit cover, and wings that can be pulled in for a more streamlined plane. Own the skies with your creations! LEGO set 9394 Ages 9-16