Mint scent repels cockroaches! Lasts for approximately 90 days. Blocks unpleasant pests with fragrance! Effective against fruit flies as well! No pesticides used. Can eliminate odors such as those from kitchen waste, including ammonia and trimethylamine, as well as the smell of tobacco from acetic acid. Place it in areas such as the kitchen sink, gaps next to the refrigerator, or near the trash can. Adjust the strength of the scent by peeling the silver sticker! Safety warnings ● Do not use for purposes other than intended. ● This product is not food. ● If accidentally swallowed, spit it out immediately and consult a doctor. ● If you feel unwell, stop using immediately. ● Adjust the scent with the opening and closing of the silver peel-off paper. ● Avoid direct sunlight and keep out of reach of children. ● If contents spill, it may cause stains, so wipe immediately with a damp cloth. ● Discoloration of the surface does not affect effectiveness. ● Effectiveness and duration may vary depending on the season, weather, and placement.