These diffusers are made with dried flowers and come with their own scent. Due to their delicate nature please remove from vehicle in extreme heat as this may cause damage. Will come in either lemon, lavender or peach scent. To use, attach the clip to the back and insert one scented disk. Clip onto the car air vent and enjoy. All care will be taken to ensure they don’t crush during transportation. Scent and flowers will be chosen at random.