Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hairball free for weeks

My cats love this! I keep it on a shelf, and one of them sits and stares at it until I brush her. No hairballs in 3 weeks, and she used to get 1-2 per week. I hate giving the hairball medicine, and it's so nice to be able to prevent the hairballs. I brush both my cats very gently every day, for just a few minutes. They both purr and roll around so I can get every spot. I don't let them rub their faces on the FURminator- I turn the blade around and use the backside of the handle if they want a face rub. I've heard it can take the whiskers off if you use it on the face. I hope it works as well for your kitties as it does for mine. Bonus- my home is much cleaner too. Other deshedding tools just don't compare in my book.