Kills roof rats, house mice, meadow voles*, and warfarin-resistant Norway rats Norway rats and house mice may consume a lethal dose in a single night’s feeding Contains the active ingredient bromadiolone, a second-generation anticoagulant that causes internal bleeding Palatable formula with grains and seeds No-touch pellet place packs make application easy Rodents will eat directly through the place pack 1.5 ounce pack