Custom Laser Engraved Car Air Freshener. Empty bottle for your own custom fragrance Can be engraved with a Monogram, Floral letter or Saying High quality: the bottle is made of durable glass, not easy to break, Cap is made with wood for great durability but breathable enough to release just the right amount of aroma. Volatile balls that release long-lasting car scents. Easy to use: Open the cap of the wooden bottle, add the preferred liquid through the mouth of the bottle, put on the metal clip, screw on the wooden cap (please screw on the cap gently), and finally insert the wooden waving stick. Volatilizing stick absorbs the fragrance, it will emit slowly and lastingly to improve the smell. Wide application: You can put perfume or essential oils according to your preference, and then to put them in car, office, kitchen, bathroom, cabinet, etc. Makes a great gift!