Ramik 116339 Rat & Mouse Killer Nuggets Brute, 4 lbsHighlights: Size: 15 x 4 lbs Weather Resistant Ultimate, all weather rodenticide for killing and controlling Norway rats Roof rats and house mice indoors and out Especially suited for use in wet and damp areas Green, fish flavored nuggets retain its freshness and effectiveness even in difficult conditions Contains the active ingredient: Diphacinone Replacement item for sku no. 658. 9584