Disposable Bait Station contains one Tier 1 Disposable Rat Sized Bait Station with a 4 oz. Block of Bait. Tier 1 Stations meet EPA's highest standard for bait station security and are proven resistant to tampering by children and dogs. See-thru window for easy bait monitoring. Bait is made with Bromethalin – an acute, non-anticoagulant active proven to kills rats & mice faster than anticoagulant baits. Each station contains enough bait to kill up to 10 rats. Approved for indoor and outdoor use.