This pack comes with two fragrance sticks, fragranced with the highest quality fragrance oils, developed, blended, and made in Australia. Each fragrance stick is made to fragrance your car for up to three weeks. Tear open one packet of NXT fragrance, unscrew and insert it into the side of the NXT metal car diffuser case, close and slip into car vent, adjust scent strength via twisting the side to open and close the grill. Keep away from flames and out of reach of children and pets. Do not ingest, if ingested rinse mouth with water and seek medical advice. Avoid fragrance stick from contacting the skin, if extended contact does occur wash thoroughly with soap and water. If an allergic reaction occurs please discard, and seek immediate medical attention. Do not allow contact with plastic, upholstery, painted or varnished surfaces. Natural materials may cause product discolouration over time. Car diffuser clip is sold separately from car diffuser fragrance, ensure both are purchased to use your NXT car diffuser fragrance, unless you are purchasing an auto fragrance tag which are only solely needed for use.