Kills fast. Discreet. Easy to apply. No mess. Kills the colony. How Combat Ant Killing Bait Strips Work: 1. Ants (Except for carpenter, fire, pharaoh and harvester ants) find the bait strips and eat the bait. 2. Ants (Except for carpenter, fire, pharaoh and harvester ants) carry the bait back to the colony so that it kills the queen and other ants in the colony. Guaranteed to work. Quality & responsibility. Made in Korea.