Citrusy and musk. The fragrant Niki figurine is a designer car fragrance with a replaceable cartridge made of perfumed rubber, containing special essential oils that will scent your vehicle for 30 days. It combats unpleasant odors, such as cigarette smoke, and pleasantly refreshes the air. It does not contain alcohol. Simply insert the figurine into the car's vent using the clip on its back. Once depleted, the cartridge can easily be replaced with the same or a different fragrance.