Combat Roach Bait for small and large roaches is formulated with food that attracts both small and large roaches. Best used in areas like under sinks, behind toilets and behind appliances, Combat Roach Bait kills roaches in a domino-effect, and eliminates at the source of the infestation. Place Combat Roach Killing Bait Stations for small and large roaches in areas often visited by roaches. Roaches enter station and eat bait, roaches take bait back to the nest. Roaches share the bait, killing other roaches and destroying the nest.