Combat Source Kill Max Roach Killing Gel is a 30g ant bait gel containing the active ingredient Fipronil, a fast-acting insecticide that targets worker ants and eliminates entire colonies by affecting larvae and the queen. It is designed for easy application in cracks, crevices, and hard-to-reach areas. This gel is effective against multiple ant species including Carpenter, Pharaoh, Argentine, Cornfield, Odorous House, Thief, Pavement, White Footed, and Little Black Ants. The product is clear and formulated to attract ants quickly, with results in three to five days, available in a case of 12.