Integrated Truss Structure
The Integrated Truss Structure (ITS) of the International Space Station (ISS) consists of a linear arranged sequence of connected trusses on which various unpressurized components are mounted such as logistics carriers, radiators, solar arrays, and other equipment. It supplies the ISS with a bus architecture. It is approximately 110 metres (360 feet) long, weighs slightly under 118 tonnes (260,000 lb) with all its attached equipment, and is made primarily from aluminium and stainless steel.