Dual bait technology - two types of bait to attract and kill ants. After ants feed on the bait, they return to the colony and transfer the bait to the queen and the others, thereby killing the entire colony. Kills a wide variety of household ants such as argentine ants, black carpenter ants, cornfield ants and pharaoh ants. Use indoors only. Separate baits before placement. Place the baits next to the wall along baseboards, in corners, under sinks, in cabinets and near plumbing fixtures. For top results, use all eight baits at once. Ant bait goes stale after 3 months. To keep ants from returning, replace all baits every 3 months.