Please Note: This product does NOT CONTAIN ANY ESSENTIAL OILS, the cotton swabs that come with it are unscented cotton swabs, and buyers need to bring their own essential oils to use with it. | [Unique Rotating Design] The top and bottom of our car clips have different sizes of diffuser hole, you can rotate the white dot-marked end to control the concentration of aromatherapy. When you want a faint scent, you can turn off the diffusion port of car air freshener. | [More Choice] According to different scent preferences, our car diffuser vent clip has included 12 UNSCENTED refill sticks that absorb and dispense any desired essential oil or perfume with longer lasting fragrance allowing you more aroma choice over your vehicle’s fragrance. | [New Exquisite Design] The custom car vent clip designed a newly Long cylindrical type brings you a different Visual effects. Drops your favorite essential oil to the car air fresheners giving you a joyable mood and slowing down fatigue when you driving. | [Widely Compatible] Silicone wrapped clip to avoid scratching the car vent but can clamp firmly.not limited to use in the car, suitable for universal vehicle vents,easy to install.but also for bathroom, office，kitchen，bedroom, pet houses and more | [Great Gift] This car accessories new car diffuser vent clip packaged with a exquisite box you a nice gift for your family and friends at any occasion.