It is a sticky tape border, so technically removable (not permanent like glue-on wall paper), however you would not be able to re-attach the border once you take it off. This is not something you can put up and take down multiple times.
I basically have a room that I can’t “put away” anymore. So I figured, “what the heck,” just get the nursery border. Come Spring time, I’m going to have a crib in my room, and that CAN’T be hidden. Thus, there is no hiding it in my room anymore.