If you told me five years ago I would PAY for a slab of corrugated cardboard I would have said you were crazy. Now I am telling you that I would be crazy NOT to buy them! The cats LOVE them, they last FOREVER and they totally curb much of the furniture scratching. I have several scattered about it corners and not a day goes by that I don’t hear somebody picking at one of them. They also love the round track with the ball that has the cardboard insert in the center. The ABSOLUTE best ones are the Alpine slopes – they all fight over those but these are good too on a budget.