The Smelly Balls Onyx Cut Throat 5mL Set Car Air Freshener appears to be a car air freshener product designed to enhance your driving experience during road trips. Here are some key features of this product:

• Fragrance: The air freshener features the Cut Throat fragrance, which is described as a spicy blend of Indonesian nutmeg, lemon, and star anise. This combination creates a nostalgic scent that can make your car smell pleasant.

• Reusable Design: This car air freshener is designed to be reusable, which means you can enjoy the fragrance for an extended period. This is environmentally friendly and cost-effective as you don't need to frequently replace it.

• Components: The set includes four unscented felt balls, each with a branded charm and an elastic string. These felt balls serve as the carriers for the fragrance and can be easily hung in your car using the attached strings.

• Fragrance Oil: The set also includes a 5mL bottle of fragrance oil, which you can apply to the felt balls to refresh the scent when needed. The included fragrance oil is likely to be the Cut Throat fragrance mentioned earlier.

• Enhancing the Driving Experience: This product is the ultimate road trip essential, suggesting that it's intended to make your road trips more enjoyable and refreshing by creating a pleasant atmosphere inside your car.

Overall, this car air freshener set is designed to provide a long-lasting and enjoyable fragrance experience for your vehicle, with the added benefit of being reusable, making it suitable for road trips and everyday use.