RatX Pellets are made with naturally derived ingredients, RatX Pellets attract rats and mice when used as directed. Active ingredients in the pellets make rats and mice stop drinking, leading to eventual dehydration and death without a noticeable odor. Just peel off the bait tray cover and set the RatX Ready Trays out where you see rat or mouse activity. You can place RatX trys in industrial buildings, livestock premises, homes, barnyards and any are where the unwanted pests inhabit.