Tomcat, 8 Pack, 1.68 OZ, Liquid Concentrate Rat/Mouse Bait, Kills Norway Rats, Roof Rats & House Mice, Mix With QT Water, Ideal For Areas With Extensive Food Sources, For Use in Agricultural, Industrial & Commercial Buildings, Do Not Use In Homes Or Other Residential Settings, Do Not Use Outdoors, Active Ingredient: Diphacinone, Box.