The Eco-Scratchers work much better than I expected. I was afraid they would encourage our cats to claw boxes any time they could, which I try to discourage. We have items from storage that are in corrugated boxes and we receive packages in these boxes, so I do not want to encourage random box scratching. The Eco-Scratchers work well for the cats. They like scratching them and leave the other boxes alone. I was also afraid the Eco-Scratchers would wear out too fast. This has not been the case . Even though our two cats scratch them all the time they have held up well. The Eco-Scratchers can be rotated, and flipped over, which extends their useful life. I would highly recommend them.