RAT-A-WAY the world's only patented and EPA registered granular rodent repellent. RAT-A-WAY is approved for outdoor use and works to prevent rodents from entering a structure, eliminating the problems associated with controling rodents once inside; accidental poisonings, secondary poisoning, decay and odor problems, and removal of rodents from glue boards or traps. Why treat them in your home when you can keep them out from the beginning?