holes at the bottom and a beautiful engraved and hollowed out flower on the top. These designs design allows the fragrance to emit slowly and the fragrance to last. The back clip design can be firmly fixed on the air outlet of the car air conditioner, which is convenient and easy to use. 【Trustworthy Materials】The car essential oil diffuser is made of quality wood material and lava stone, with vent clip and flower shape;. This essential Oil Car Diffuser is simple and small, which design does not take up space and in the car or room is a good decoration. 【Simple Operation】Simple operation will be able to enjoy what aroma you want. Just drip 3-4 drops of your favorite essential oil on top of the wood and wait for the essential oil to be absorbed, then clip it on the exhaust hole of car air conditioner by the clip. Then you will smell the scent of your favorite essential oil in the car. 【Enjoy Fragrance】Breathing in your favorite scent can help refresh and relax your mind. This wood essential oil diffuser is suitable for various models, and also suitable for living room, bedroom, study, etc., to create a warm and fragrant environment for you.