Sergeant's Pet Armor Plus Igr For Dogs Flea And Tick, Size: 6.5-22lb 3count Kill fleas, flea eggs, flea larvae, ticks and chewing lice for up to 30 days with PetArmor Plus for Dogs! Fast-acting, long-lasting, waterproof. Kills ticks, including those that may transmit Lyme disease. For use only on dogs and puppies 6.5lb - 22lb over 8 weeks of age (Do not use on cats) Each package contains three applicators, each 0.023 fl oz (0.67ml), for 3 monthly treatments