Available in a 4-lb. bucket of 0.5-oz. blocks, this single-feed, bromethalin formulation makes rodents want to stop feeding after consuming a lethal dose, using less bait overall. Assault Blocks have a quick knockdown when compared to other anticoagulants, with results in as little as two days after consuming a toxic dose. It’s ideal for controlling rodents with resistance to anticoagulants, the company says.