Review on Highly Effective Homarden Cat Repellent Outdoor - 10-Piece Set of Cat Scat Mats - 16x13 Inches - with 1-inch Plastic Spikes - 13ft Coverage - Ultimate Cat Deterrent! by Brian Rivenbark

I bought these to keep the neighbor's cats from marking my sliding patio door. I've only had the mats for a week and the cats are not regular in their habits but so far so good. The reason I'm only giving 3 stars today is that at low temperatures (below 20°C) plastic breaks very easily even if hit lightly. As such, they must be carefully lifted before being raked or swept around them, and if someone were to step on the section they would surely be crushed. However, they are not expensive, there are many sections in order, and this is a good and gentle way to deal with pesky animals. I'll try to remember to edit this after seeing how well they hold up. survived the winter and whether any volumes passed through. Update: After the northern winter, the carpets behaved normally until walked on. I have a nice trail of crushed tines on one where I forgot. They held up well when moved. Now that the temperature is above zero, they are not so fragile. The cat did not mark the places where the mats were laid out, although "someone" found another place nearby, and this was solved by expanding the placement of the mats. I'm increasing my rating to 4 stars.