I bought this rug on behalf of my mother. Being a large item, after purchase, it would have been too troublesome to return. She tells me that the four corners turn up when on the floor, creating a potential tripping hazard. As they are both in their late 70's, with my step-father having some mobility challenges, this is a worry. They have purchased other rugs (which were cheaper) and they had no worry about corners creating a tripping hazard. My mother tells me, if she had her time back, she would have ordered a different, more costly rug, perhaps locally. At all points, the corners and the two short ends are turned up, creating the problem. She hoped it would flatten out over time, however, it has yet to do so. Quite disappointed.