Keep in mind this review is for an INDOOR installation. I got these strips because our dog, as she aged, started slipping on the basement stairs. The stairs are wooden with a smooth polyurethane finish and the application was very simple. I had to be sure to keep each strip properly aligned as I applied them, as the adhesive is VERY strong and I don't see them moving at all once contact is made (at least on my polyurethane finish). The grit is fine and well secured and I don't see it coming off any time soon (as opposed to the stuff at work which starts coming off as soon as you start walking on it). The dog no longer slips on the stairs, so she is no longer afraid and is back to running up and down the stairs like before when she was younger. These strips are a good addition for us as well, as the stairs were always slippery when they got wet, which was frequently since I'm always taking potted plants back and forth on those stairs. They look good, no edges have come up (and I've purposely abused them to see if they would come up) and the grip is very impressive.