Fitment: 2015-2019 Chevrolet Silverado 2500 HD 2015-2019 Chevrolet Silverado 3500 HD Package Includes: 4 x Vent Visors Specifications: External mounting type (stick on the door and above the windows. Not in the channel) Mounting method: Adhesive Installation: Direct mount and no drilling, less than 30 minutes Features & Benefits: 1. 100% brand new and comes in box, this item is designed to fully protect your car windows from the sun, wind, rain and snow. 2. The shading effect of this item is excellent, which can effectively block the sunlight and reduce the temperature inside the car. At the same time, it can also prevent rain and snow from entering the car, keeping the interior dry and clean. 3. This item allows air to circulate inside the car when the windows are partially opened, helping to reduce heat accumulation in parked cars. 4. Made of durable materials that can withstand harsh conditions, this item is designed to last a long time. 5. With this item, you can leave the windows down a few inches to get fresh air even on rainy days, which is very convenient. 6. Comes with 3M double-sided automotive tapes for easy installation, this item can be easily attached to the window without any tools. 7. This item can greatly improve the style and appearance of your car, making it more stylish and customized.