The In-Channel Ventvisor continues to protect and comfort more drivers on the road than any other window vent. Precision-engineered for a perfect fit with every type of vehicle in any type of weather; the original In-Channel Ventvisor keeps you dry in the rain and cool in the heat with superior design and style. Keeps rain out and lets fresh air in. Installs in window channel for sleek appearance. Reduces heat build-up in parked vehicles by allowing window to be kept partially open. Custom fit for your vehicle.