The range of scale diecast metal airliner and military aircraft models from GeminiJets replicas represent the world's airlines and militaries both past and present. GeminiJets models are highly collectible and are all limited editions. As with all limited edition collectibles, GeminiJets does not to reissue models which have previously sold out. GeminiJets goes to great lengths to produce diecast metal models that replicates aircraft without sacrificing accuracy. Aircraft manufacturers' blueprints and Pantone color charts are used to assure accurate duplication. Aircraft models in this scale are small and dimensions are proportional to those of the real aircraft. A smaller airliner such as the Boeing 737 or the Airbus A321 is approximately 4 inches (10.1 cm) long. A larger airliner such as the Boeing 777 or the Airbus A350 is approximately 8 inches (20.3 cm) long.