We spent a lot of money removing a nailed down runner from our stairs 3 years ago and didn’t want to install another one. Our 12  year old dog has been struggling getting down the stairs and we were worried she would fall and get seriously hurt. These runners are a game changer for her. She is now confident going up and down and we aren’t as worried about her physical well being. Quality is ok but the fact that we can remove whenever we want makes them great!