Quickly rid your cat of fleas with Advantage II Topical Flea Treatment for Cats 9+lbs! Keep your cat and home safe and flea free with this once a month waterproof flea treatment. Advantage stops fleas from biting in 3-5 minutes, kills 98-100% of fleas within 12 hours of application, and prevents re-infestation. Effectively kills adult fleas, flea eggs, flea larvae to break the entire flea life cycle. Use only on cats 9 pounds and over that are 12 weeks or older. Protect your cat and home with Advantage II Topical Flea Treatment for Cats!