Tamper-resistant Bait Stations are an integral part of baiting. They keep bait away from children, livestock, pets and other animals, as well as protect bait from dust, dirt, moisture and other contaminants so bait stays fresh longer. Use them also to monitor rodent activity to determine areas of heavy and mild infestation. Large rat size dual entrances; will hold over 1/2 pound of rodenticide. Can be used indoors and outdoors; securing to the ground or floor recommended Station locks with a plastic key (included). Baits not included!