(Farnam) Permethrin formula designed to kill and repel fleas, ticks and mosquitos for up to 30 days. Contains insect growth regulator methoprene to break the flea life-cycle by killing eggs and larvae. For use on dogs and puppies over 6 months. Do not use on cats. Dogs or puppies up to 29 lbs. body weight require 1 applicator. Dogs 30-59 lbs. require 2 applicators. Dogs over 60 lbs. require 3 applicators. Pack contains 48 applicators, 1cc each. Not labeled for individual re-sale.