We've had these for about a week. We laid them on our wooden stairs, pushed them down a bit, and they've been great! They really don't move at all. We got them so out dog could go up and down without slipping, and he has no trouble now. The carpet seems to be very high quality, indoor/outdoor material, with very good stitching along the edges. The back side "sticky" material is very grippy. It releases easily and resticks with no problem. They seem like they will last a long time. Our goal was to buy one quality set so we would not have to purchase again. Hopefully we won't need to for a long time, but I would definitely buy from Dean's again!