Shake-Away Rodent Repellent is a unique all natural formula that aggravates the senses of all rodents, making the protected area unpleasant to them. The scent of the granules is a powerful irritant that impacts the sensitive sense of smell. And because our product works by repelling, rather than harming, poisoning or killing rodents it eliminates the concern of having dead animals scattered inside walls or in attics. The all natural repellent for mice, rats, moles, voles, squirrels, chipmunks, and shrews.