Bonide NO ESCAPE Mouse Magic Repellent – 4 Pack – lets you watch 'em disappear! The all natural ingredients in Mouse Magic triggers "escape/avoidance" behaviors in rodents, driving them from homes, sheds and patios. This unique new method of rodent control combines the effectiveness of natural essential oils with the convenience of "place pack" technology. Simply locate "place packs", which exude the repelling quality of the essential oils, any where mice enter, feed or nest. Lasts over 30 days in laboratory tests. Active ingredients: Peppermint Oil 2.0%, Spearmint Oil 2.0%. Inert ingredients: 96.0%