Disposable rat bait station. Effectively kills rats while providing the highest level of station security. Resistant to tampering by children and dogs. Preloaded, so no need to touch the bait when placing the station. See-through window for easy bait monitoring. Each 4 oz bait block kills up to 10 rats. Contains (1) 4 oz bait block and 1 bait station. Active ingredient: 0.01% Bromethalin.