Each diffuser comes tagged with fragrance name, description of fragrance, and instructions on the back of the tag ready to sell! Our car diffusers are made with the highest quality fragrance oils on the market. They are phthalate free and do not contain any of the harsh toxins that are found on the California Prop 65 list. Some diffusers contain decorative filler such as dried flowers, glitter, or clay figures. Please note that BOTTLE SHAPE MAY VARY. Never used one before? Here is how! (The text below is also on the back of the tag.) Step 1: Remove wooden lid + stopper. Step 2: Screw wooden lid back on. Step 3: Carefully tie onto rearview mirror. Step 4: Tip upside down for 2-3 seconds. Hang at all times to avoid leakage. If leakage occurs, wipe immediately. Avoid contact with eyes, furnishings, and car interior. DO NOT INGEST. Store at room temperature when not in use. Recommend tipping over once a week.