AVS Chrome Ventvisors(R) are precision engineered for an exact fit to the broadest range of vehicle applications. Its design allows fresh air to circulate through open windows while keeping the weather outside. Chrome Ventvisor Deflector - 4 pc. 2019-2021 Chevrolet Silverado 1500 Double Cab Pickup; 2019-2021 Chevrolet Silverado 1500 Double Cab Pickup; 2019-2021 GMC Sierra 1500 Double Cab Pickup; 2019-2021 GMC Sierra 1500 Double Cab Pickup