“I am using these on the arms of my leather couches that have started to get worn. You are going to need to use some type of fastener to keep them in place, there is no way these (or any arm covers, really) are going to stay on by themselves. I got a pack of upholstery twist pins from Joann Fabrics and they work great. A couple strip of velcro might also work depending on your couch material.”