This urine collection and transfer device was part of the equipment developed for use during the Gemini missions. As noted on the device itself, this one was for training purposes.
Astronauts eliminated their liquid waste (urine) through this piece of equipment using flexible and replaceable roll-on cuffs, which provided a tight seal and personal sanitary protection. The urine was transferred to a tank, from which the majority of liquid waste was vented into space. A small portion was freeze-dried and stored, for testing upon return to Earth.
NASA transferred this device to the National Air and Space Museum in 1970.