How can there be fragrance: 1: Slide the cover of the fragrance 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 tasteCaution: Suitable auto parts brands and models: All car brands and models can be used as long as the air conditioner outlet is not roundFeature: * 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 (UPINGZI)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 dont 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.