Tomcat Mouse Killer contains one (1) Tier 1 Disposable Bait Station with 1oz block of bait. Effectively controls mice while providing the security of a Tier 1 child and dog resistant station. Made with Bromethalin ? an acute, non-anticoagulant active proven to kill mice faster than anticoagulant baits. Each Block kills up to 12 Mice, based on no choice laboratory testing.