These are three utility cords for use by a Gemini astronaut performing an EVA. They have electrical plug-ins on both ends. Astronauts successfully performed EVAs during the Gemini IV, VIII, IX-A, X, XI, and XII missions. These cords are flight-ready hardware and may have been used by Michael Collins during his EVA during the Gemini X mission. Their manufacturer is unknown. NASA transferred them to NASM in 1968.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.