When we rolled this out it was "wavy" at the top of the roll. We stayed on the floor with books for a few days, but it didn't help much. My husband held on anyway and thought the glue we bought would help him hold on but it didn't. For several hours, he moved away from the wall in many places. Also, since it was twisted, the little crease that had to run along the bottom to secure it to the floor was almost non-existent. He tried to fold, but that didn't work either. Bottom line, this was the worst thing I've ever bought online. It mostly stuck in the middle where it was flat like it should be, but both the top and bottom were peeling off the wall where it was wavy. We were supposed to return it as soon as it was unboxed but I think he figured the glue would help it stick. Because we tried to use it we lost $$. We had to remove it and go with something else. This is the first negative review I've ever posted about something I bought online, but I want people to know what they can get - maybe we've got two bad rolls - I don't know. Good point, it arrived very quickly