The Skull Gradient Black Car Air Freshener Bottle Diffuser (Empty) is a distinctive automotive accessory that ingeniously blends dark, edgy aesthetics with practicality. Fashioned from premium materials, this skull-shaped diffuser boasts a captivating gradient black finish, serving as an alluring interior accent while effectively refreshing your car's atmosphere. Engineered for optimal scent diffusion, this refillable bottle can be filled with any preferred essential oils or air freshener refills to personalize your car's ambiance.