Kills fast. Kills non-stop. Kills the nest. Large roaches. Child-resistant. Kills in hours. Kills roaches continuously for 3 months. Quick kill formula. How Combat Roach Killing Bait Works: (1) Roaches enter the bait. (2) Roaches take the bait back to the nest. (3) Roaches share the bait, killing other roaches and destroying the nest. Please recycle empty carton.