Fun little Skull car diffusers that are perfect to have your favorite scent on the go! Filled with quality fragrance oils, botanicals and gold flakes! Skull Diffusers have attached tags displaying their scent! PLEASE NOTE that the car diffuser oils if spilled can potentially ruin the vinyl of the interior of your car, so please be careful when tilting the bottle to saturate the top. We recommend reapplying the little plastic topper after every use to avoid spills.