Raid Max Roach & Ant provides relief from even the heaviest infestations of roaches and ants for up to 30 weeks. It kills instantly. Also, it kills resistant roaches those immune to ordinary insecticide. Contains Cylathrin. Spray around baseboards, into cracks and crevices, under sinks, in cabinets and refrigerators, on damp areas, and other places where roaches and ants may hide.