"I have a lmedium-long haired white cat, with thick, dense fur on his back. He is always getting mats, despite regular brushing. They end up having to be cut out. Once I started using this Mat and Tangle Remover brush, it removed mats that were forming, and with regular use, has prevented any more. He is completely mat free for the first time since birth - he turns 8 soon! He likes the brush, too, and it makes brushing him with any brush afterwards pain free, which is even better."