This kit is meant to be used with any Airfix Saturn 1B kit to portray the unflown Apollo 1 SA-204 launch vehicle. It includes replacement first stage engines and fins and a solid SLA/SM/BPC/LES. The engines are nicely hollowed out: all other resin parts are solid. The resin parts are molded with crisp details, a smooth surface finish and no visible airholes. All parts need to be removed from their pour plugs. Extra parts are included for some of the smaller details. All parts are identified by numbers (molded onto the pour plugs in the case of the resin parts, etched next to the photoetched parts). The decals consist of mission specific markings to supplement the kit decals. The instructions consist of a series of drawings showing where to use the New Ware parts on the Airfix kit. In some cases, you are given a choice of resin, photoetched or kit parts to use. References are also included for photos on the New Ware web site.