This is a scratcher and a foothold in one. Wrapped in tough natural sisal, it stands up to real clawing without the shedding and crumbling you get from cardboard, and mounted in a line these steps become a climbing route up the wall. The sisal is glued down the full length of the post, so it will not sag or unravel after a season of heavy use.It was made with renters in mind. The step goes into studs but will also take drywall, brick, or concrete, and it hangs on two standard number 8 screws, the same size you would use for a picture. A foam backing protects your paint, and pulling it off later leaves only two small holes to patch. As the original floating sisal post, it has had over a decade of refinement behind it, with a steel bracket rated to hold up to 70 pounds per post.