I always HAVE to be doing something with my hands - it helps me concentrate and pass time! I would assume the astronauts at the ISS have some down time, and they might need something to distract them and help pass time, too. So, I came up with the Idea of a little widget that you can snap together and apart through the middle. You put your fingers in the little holes on the top and bottom and SNAP the two pieces together and apart! (That's why it's called Space Station SNAP!) This tool can be useful, by helping you concentrate, and it can be used for passing time and personal entertainment! The two pieces of the tool (top and bottom) are SNAP fit, and the holes on each piece are 3/4" in diameter, so most adult fingers should fit nicely.