Keep your car smelling good with one of our cute car scent diffusers. They're long lasting and the perfect car accessory! How It Works: Unscrew the wooden cap Take out the plastic topper and replace the wooden cap Tip it upside down for a few seconds or until you see the cap start to darken Hang it up and enjoy the refreshing aroma Disclaimer: By purchasing this product you release B & A Creations from any liability. When used correctly, oil should never drip or leak or come in contact with the car interior. If oil comes in contact, clean immediately.