Rid your farm, ranch, or home of rats and mice with Tomcat rodent blocks, a powerful multiple-feed rodenticide. Designed with multiple edges to encourage gnawing, each 1 lb all-weather block is designed for rugged outdoor and indoor use. Rodents will die within 4-6 days after consuming a lethal dose. This rodenticide is also available in Chunx form in 4 lb and 9 lb pails (part numbers 32444 and 32446).Warning: Diphacinone is unsafe for pets and wildlife. | Motomco Tomcat Rodent Block 4 Pack | Size 4 lb