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. According to different scent preferences, our car diffuser vent clip has included 5 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. The custom car vent clip designed a newly Long cylindrical type brings you a different Visual effects. Drops your favorite essential oil giving you a joyable mood and slowing down fatigue when you driving. 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 Easy to use: Just drop your favorite essential oil on the unscented stick and load it into the aroma diffuser, then you just clip the car diffuser on the car's vent This new car diffuser vent clip packaged with yarn bag and black velvet bag boasts you a nice gift for your family and friends at any occasion. You can use your Hermes, Calvin Klein,Chanel, Prada, Gucci, Versace, Tom Ford, Christian Dior, Bvlagri, Burberry or Giorgio Armani brand Perfume and spray on the unscented stick to get the you favorite smell any where Description: 100% Brand New and High Quality. Exquisite small and cute volatile agent, best decoration. Widely use for car, bathroom, bedroom, pet houses and more. Solid fragrance sticks, cleaner and more durable than normal liquid perfume. Professional extraction process from a variety of plants, not pungent, multiple efficacy. Mini size, which can be installed on the air-conditioning vent and never impact your sight during drive Specifications: Feature: mini Type: solid state Shape: cylindrical Color: black Shelf life: one year Fragrance type: various Perfume base material: metal Package Included: 2 PC Car air freshener 5 PC Unscented Sticks