Revolution For Cats Weighing 2.6-7.5Kgrevolution Cat Blue Is A Simple Once A Month Pipette Which Is Applied To The Skin Just In Front Of Your Cats Shoulder Blades Which Protects Your Cat Against Fleas, Heartworm And Other Nasty Parasites Such As Ear Mites For The Entire Month.Revolution Kills Not Only The Adult Flea But Also Kills Their Eggs And Larvae To Break The Lifecycle Of Fleas In The Environment Which Protects Your Cat For The Entire Month. Revolution Cat Provides Protection Against Parasites Including Ear Mites, Roundworm, And Hookworm. Another Benefit Is Being Able To Bathe Your Cat 2 Hours After Application.