This soft rubber brush is top of the line professional quality, We use this on every cat that comes into our salon for grooming. It is accepted by all cats, gentle and safe. It reduces shedding by removing the shorter topcoat. It can also be used to scrub in the bath. Can be used daily as part of a shed reduction effort. Fantastic on shorthaired cats, but works on medium and longhairs too. We haven't found it as effective on Persians.