Ant-killing bait strips are formulated to attract ants quickly – acting as a necessary food and water supply for ants. Fast-acting insecticide, Fipronil, is one of the most powerful ant killers, and starts to exterminate ants in hours. Worker ants return to the colony and feed the bait to the larvae and to the queen, eliminating the entire ant colony. Bait strips are easy-to-use—simply place baits and watch them work. There's no monitoring necessary. Discreet design is perfect for hard-to-reach places. Use them in multiple locations simultaneously for broader coverage. Physical Form: Solid; Application: Indoor; Pest Type: Argentine Ants; Cornfield Ants; Odorous House Ants; Thief Ants; Pavement Ants; White Footed Ants; Little Black Ants; Capacity (Weight): 0.35 oz.