The Tomcat mouse killer refillable bait station - advanced formula controls mice with an advanced formulation bait block that is more attractive to house mice (compared to our Tomcat mouse killer child & dog resistant refillable station [EPA Reg. No. 90780-10]). This Tomcat mouse bait station can be placed indoors or outdoors and it's resistant to weather and tampering by children and dogs. Bait stations with mouse poison should be placed beside burrows, along walls, behind kitchen appliances, inside cabinets, in garages and basements and along the exterior of the home. If more than one station is being used, place them at 8 to 12-foot intervals. Mice will likely eat a small portion of the bait and then leave the station.