Begins to kill rats & mice in 2 or more days after consuming a lethal dose, faster than anticoagulant baits. Due to a quick knockdown when compared to anticoagulants, more rodents can be controlled with less bait. Chunx are made with food-grade ingredients and small amounts of paraffin for a highly palatable bait. Each block kills up to 12 mice, based on no-choice laboratory testing.