Tomcat Rat Killer II effectively kills up to 3 rats* with one bait block while providing the highest level of station security. Resistant to weather and tampering, the reusable station gives rats easy access to bait and keeps child fingers and pet paws out. The bait station is also weather resistant making it the ideal for indoor and outdoor use. Follow all directions and restrictions on label when using the bait station. * Based on no-choice laboratory testing.