Tomcat Disposable Bait StationStations are pre loaded (Disposable) or packaged with bromethalin block bait (Refillable). Bromethalin is an acute toxicant capable of controlling even anticoagulant resistant rats and mice. Each 1 oz bromethalin block is capable of killing up to 12 mice.* Stations are available in Tier 1 and Tier 3 compliance: Tier 1 stations meet the highest level of security and quality. Tier 1 stations are kid and dog resistant and can be used indoors or outdoors.