AeroTech 6120 Q-Jet Black Max Composite Model Rocket Motor - D16-4FJ 2 Pack (Ships USPS Ground) Pinewood Derby The screen is transflective which

The screen is transflective which enables both indoor and outdoor visibility

forms the background to it all

Outlet Ports: 1

and a pencil tip for precise applications

AeroTech 6120 Q-Jet Black Max Composite Model Rocket Motor - D16-4FJ 2 Pack (Ships USPS Ground) Pinewood Derby The screen is transflective whichAeroTech 6120 Q Jet Black Max Composite Model Rocket Motor D16 4FJ 2 Pack Ships USPS Ground The Q Jets are the world's most advanced 18mm model rocket motors. They utilize a patent pending high strength polymer case and bulkhead, ceramic nozzle and RCSs exclusive Black Max aerospace grade composite propellant formulation, which produces nearly double the specific impulse (or "Isp", a propellant efficiency rating) of conventional black powder