JT Eaton Bait Block 2G Second Generation Rodenticide (716-B) will provide the perfect solution to your mouse and rat control problem. It contains Bromadiolone as its active ingredient which effectively kill house mice, roof rats, and even warfarin-resistant Norway rats. It is ideal for use along walls, beside burrows, gnawed openings, in corners and concealed places, between floors and walls, or in areas where signs of rats or house mice are usually seen. It has been specailly formulated for humid conditions and mold prevention. Also has high resistance to extreme weather conditions and designed with multiple edges to encourage rodents to feed. It also contains Bitrex to discourage pets and children from consuming. Time to kill is 3 to 5 days. Product comes in a 16 lb. pail with about 256 bait block weighing approximately 1 oz. each.