Cardboard Scratcher

I have a few scratcher around the house. I have found Smokey and Arwen use most of them but they are using the cheapest one the cardboard scratcher more and more. I paid all of $2.99 for it. I have it flat on the floor in the den. They go after it on a regular basis. Arwen uses it the most but I am finding that Smokey is taking a greater liking to it as the weeks go by.