The resin parts, with the exception of the engine bell, are solid with crisply molded details and finely engraved panel lines. There are no visible airholes on the parts in my sample. All parts are still attached to their pour plugs. Thin rod or wire (not included in the kit) will be needed for the turbine exhaust braces. The instructions include a short program history, exploded assembly drawings and a five view painting and decaling guide.