I had purchased another two mats of a different brand some time ago. A little less quality and price and a had a huge problem with them. My cat loved to sharpen her claws on both and actually destroyed both in a short time. Decided to spend more money for NewLife and she has not touched it. Maybe it is the color or the density, not sure. I let her have the old mats in the laundry room and the lanai - still continuing to sharpen her claws. The NewLife is GREAT on my feet and legs since I do have a lot of problems with them. Glad I went and purchased them. I have had the mats for about 3 months and my cat had not bothered them since I purchased I brought them home. There must be so "vodo" in them there mats