BMW Natural Air Starter Kit - Car Fragrance - Mountain View. The elegant BMW fragrance holder is made of black plastic which is surrounded with a silver matte frame. The holder can be attached to all BMW derivatives with the help of the pre-installed nubs in the ventilation grilles. The nubs can also be pushed out of their attachment and alternatively tweezers can be attached in the middle of the holder. The tweezers are not suitable for all vehicles. The simple operation mechanism makes it easier to regulate the intensity of the fragrance.