TAT Power-Jet Stream With Residual Action, 12-Ounce KILLS ON CONTACT: Kills roaches, ants and other listed bugs in seconds. FOR INDOOR USE: Spot treatment for control of cockroaches, ants, spiders, crickets, firebrats and silverfish  see product label for complete instructions. RESIDUAL CONTROL: Keeps on killing for up to 12 weeks. JET TUBE: Treats cracks and crevices where bugs hide, including behind baseboards, in dark corners, behind stoves, around plumbing and more. AEROSOL SPRAY: Spray surfaces until wet, moving the spray rapidly to prevent excessive wetting.