Sonax Air Freshener Lemon Rocks is an attractive look for an intense, long-lasting fragrance experience thanks to the use of high-quality perfume oils. Plastic blister made from 70% recycled material with easy attachment to the ventilation grille. Provides over 30 days of pleasant fragrance in the vehicle. Provides an intense long-lasting fragrance experience through the use of high-quality perfume oils. Easy to attach to air vent.