What does it Do?
The hook, hooks into a hook on the wall, and you can print more of them to create a rope of any size.
How Do you Put it Together?
You hook one end of the rope to the wall, and the other end to another Rope of Usefulness piece. (They hook together.) Keep adding other pieces until you have the rope size you want.
Why is it Useful in space?
It is useful because if you want to hook helmets, jetpacks, and suits to the wall, you can. You can use the ropes to keep your stuff from floating away.