The Smoke or Chrome Air Vent Visors for 2018 Peterbilt 567 and 579 Series Trucks are a practical and stylish addition to any truck. These visors let fresh air in while expelling stale air, odors, and heat, ensuring a comfortable and safe drive. They also reduce interior fogging, keeping you alert on the road. With easy installation using 3M Automotive Grade Tape, these visors add a unique look to your truck. Sold as a pair, they are a must-have accessory for truck owners looking to enhance their driving experience.