Active Ingredient Brodifacoum: .005% Contains A Special Mixture Of Highly Attractive Bait Ingredients Blended With A Patented Food Processing Techniques.Controls norway rats, roof rats and house mice in and around industrial, commercial, agricultural and public buildings. Rodents may consume a lethal dose in one feeding with first dead rodents appearing four or five days after treatment begins. New easy to eat shape, single feed bait and is weather resistant