316L Stainless Steel Essential Oil Aromatherapy Car Freshener / Diffuser comes with 5 felt pads to place scent on & a small 1ml bottle of scent of choice (Lavender, Eucalyptus, Coconut, Blue Lotus (my fav), Peppermint, Orange, Clary Sage, Bergamot, or Rosemary). Back clip (covered with black silicon) slides over a/c vent.