Many cats are insane about this product. Any cat who hates being brushed will spend a while several times a day brushing herself on this self groomer. Once you put the catnip in, the cat pretty much shove you out of the way. They brush their faces all over it with their eyes closed in a state of bliss. It doesn't brush a ton of hair off of them, but it is that much less on your clothing and furniture, and your cats will be extremely happy. As the picture shows, the brush can be removed to clean it, which is great. Super easy to put up and it stays put.The double sided tape sent with it and there were some screws included in the packaging. If your cats had zero interest in it,you can try brushing him with it, putting it up next to his face for him to rub against it, tapping it to try to interest him in it, etc.. Your investment is fully guaranteed. We are confident that our cat self grommer are manufactured under strict quality standards to give our customers best experience. In addition,we offer free replacement policy without any costs from your side and 1 year warranty, totally no risk for you.