"Metal housing with solar technology: The car aromatherapy diffuser is made of zinc alloy with solar fan blades that are sturdy and easy to install. Package Contents: 1 Car Solar Aromatherapy Sprayer, 1 Aromatherapy Ring.Improves Air Quality: Our car trim comes with a cologne scent ring to enhance air quality and bring out the scent. Give you a good mood every day.Long-lasting fragrance: The fragrance of the fragrance ring is even and long-lasting, bringing you a comfortable driving experience. Usually the fragrance lasts about 1 month, the best use time is 1 month. After a month, the smell will gradually subside. Put it in the solar air diffuser correctly, and the aroma will come out automatically. Suitable for pregnant women and babies.Innovative patented design: Interesting solar fan blades rotate automatically in the sun to accelerate the diffusion of fragrance. Suitable for every occasion. Whether in the car, under the windshield or at home. It would be very interesting if there were multiple diffuser blades spinning in the sun."