Swarm Commander is a honey Bee Swarm Lure.  It mimics queen honey bee pheromones. This pack is a 5 of crush vials of 0.5 ml each is enough to treat up to 2 swarm boxes or bait hives.  Crush the vial and swipe the entrance and inside the swarm box.  The pheromones will last up to two weeks if swarm is not attracted within two weeks repeat the treatment.  Shelf life is two years keep in cool place.  Do not leave in vehicle in hot sun.