This Tomcat Mouse Killer I bait station is a tamper resistant trap that is safe to place in areas frequented by children and dogs, and comes with 16 bait blocks. Designed with a clear lid for easy bait monitoring, this disposable bait station uses the active ingredient bromethalin, an acute rodenticide that will control anticoagulant resistant house mice. Refill station until supply of blocks is gone. | Motomco Tomcat Mouse Killer I Bait Station | Size 16 oz