Swarm Commander is a honey Bee Swarm Lure.  It mimics queen honey bee pheromones.   2 ounce spray bottle is enough to treat up to 200 swarm boxes or bait hives.  2 pump sprays are recommended per box, one inside and one at entrance.  The pheromones will last up to two weeks if swarm is not attracted within two weeks repeat the spray treatment.  Shelf life is two years keep in cool place.  Do not leave in vehicle in hot sun.