I have 2 cats, 1 is Turkish van and another one is persian. Turkish van has less hair compare to persian so it's not that useful for her but for persian it's very useful, specially on the tail part. 1 less start because it's not useful for one of my pet. It's very useful for the long hair pets, so I recommend you to buy only if you have long hair pet, doesn't matter if it's cat or dog.
