Cats Aren't Going For It :(

I have an older cat who continuously rubs on all corners of my house, I know it's a territory thing, but it leaves a residue after a while and so when I saw these I was pumped hoping I could solve the issue. In some ways it did, I put them on 2 areas I know my cat rubs constantly, he avoids them now? Both my cats were intrigued at first rubbed ok them a few times and now avoid them. I don't think it's the product, except the bristles are quite hard, maybe my cats are just picky.

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