“Cats love to scratch on rigid product they will sink their claws into,” suggests “Needless to say their purely natural favored substrate is wood,” states Dr. Cardboard cat scratchers are created with “cardboard containers turned on their sides, packed tightly with each other prior to remaining Lower into manageable size,” https://collinrgexy.techionblog.com/37243018/not-known-details-about-cat-scratching-posts