Dcon, mice bait station, 2 refills, 2 entry locations for mice placement in corners, child & pet tamper resistant, active ingredient cholecalciferol formulated to encourage repetitive feeding, compact design & low profile bait station helps reduce house mice problems, weather resistant, indoor or outdoor use, can be used in tight places around the house, ideal for attics, behind appliances, basements, garages & sheds.