Tomcat Mouse Killer Disposable Bait Station effectively kills mice while providing Tomcat's highest level of bait station security. Tomcat Mouse Killer Disposable Bait Station is resistant to tampering by children or dogs and can be used indoors or outdoors. Stations come pre-loaded with a 28g bromethalin block bait (no need to touch the bait). Each bait block kills up to 12 mice and the clear station lid allows for easy bait monitoring. For the most effective rodent control, use a variety of Tomcat products together for a complete system.