This Tomcat Mouse Killer I bait station comes with eight bait blocks, andis a tamper resistant trap that is safe to place in areas frequented by children and dogs. 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 8 Pack | Size 8 oz