How can there be fragrance: 1: Slide the fragrance cover to the right to open the fragrance 2: Turn on the air conditioner of the car and let the wind blow out the fragrance. It will taste goodCaution: Suitable auto parts brands and models: All car brands and models can be used as long as the air conditioner outlet is not roundReminder: Our aromatherapy is designed to be harmless to the human body and freshen the air. It does not have a strong fragrance like other liquid or solid particle aromatherapy, because other stores liquid or solid particle aromatherapy is harmful to the body. Yes, and our aromatherapy is harmless to the body of babies and pregnant women, the light blue core fragrance is the lightest, it is recommended to choose dark blue fragranceFeature: * Suitable for BMW Natural Air car air freshener * 100% brand new and high quality(MINGKECEO) * Keep the air in the car fresh, remove peculiar smells, and help you maintain a good mood * Easy to install (MEILIWEN)Specification: * Material: aviation aluminum alloy * Ingredients: natural plant fragrance * Adaptation: models with air outlet greater than 8cm Warm reminder: There are 3 letters on the product; if you mind, please don"'"t buy it; you can also buy a small sticker to cover it yourselfNotes: 1.Due to various factors such as the brightness of the display and the brightness of the light, the actual color of the product may be slightly different from the picture on the website.(MINGKECEO) 2. Please allow the data to have a slight deviation from manual measurement.