Features: Easy to use and reusable: Our car air freshener diffuser bottles are designed to absorb the fragrance slowly through the wooden lid, releasing it over time ensuring a long-lasting scent. With the feature of being reusable, it's convenient for you to refill the bottle with your favorite perfume or essential oil after the original scent wears off. Simply pour your favorite essential oil or perfume into the bottle and let the wooden lid slowly absorb and disperse it, filling your car with a calming scent for an extensive period. Thoughtful and practical gift option: These empty glass diffuser bottles make an elegant and thoughtful present for Christmas, Thanksgiving, or retirements. You can also present this essential oil diffuser for the car as a token of appreciation to coworkers, teachers, classmates, family, and more, infusing their world with a lasting refreshing aura. Specifications: Material: glass and wood lid Color: clear bottle body with colorful stickers Size: Length: about 1.77 inches Width: about 0.98 inches Package includes: 30 x Car air freshener hanging bottles Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.