The Volcain Flagship Hephaestus is a the largest in the fleet seen so far, but rumors of one that is far longer and has three rings may be lurking in the cosmos nearby. This Scientific ship has a secondary symbiotic support ship that fits neatly on its back, the Venus (available separately and as a set.) Approximately - 3-3/4" L x 1-9/16" W x 1-1/16" H (95mm L x 40 mm W x 27mm H) Assembly required, and 2” Hex metal flight stand is not included.