It contains 50-100x more fragrance than a standard toilet rimstick and consistently releases pleasant fragrance over the course of 30 days. This powerful air freshener works well in ladies restrooms, lobbies, conference rooms, nursing stations, offices, kitchens, bathrooms, and more. Comes with a plastic holder that sticks to any flat surface and doesn't need to be replace once it is installed. An easy reminder system lets you know when to replace the air freshener, simply remove the tabs upon installation to set your replacement date.