AVS In-Channel Vent Visor, 4-Piece (194443) Vent visors let fresh air in while acting as a rain guard to keep the elements out Originated by Lund, the Auto Ventshade vent visor is custom made and precision engineered to fit each vehicle to spec This window guard is crafted with tinted, UV and scratch resistant reinforced acrylic that keeps the sun out This car wash safe four-piece window visor is proudly made in the USA Easy to install - no special hardware or drilling require