Combat Roach Killing Bait for Large Roaches is formulated with food that specifically attracts American roaches and other large cockroaches, plus the effective insecticide, Hydramethylnon. This combination gives you control by killing the nest, getting rid of the problem at the source. These easy-to-use, child-resistant baits need no activation. Simply place them down and relax while they continuously work to eliminate large roaches day and night.Package includes 8 stationsActive Ingredient: Hydramethylnon.