Lund 184515 Ventvisor Elite Side Window Defectors, 4-Piece Set for 07-13 Silverado & Sierra 1500 Crew Cab; 07-14 Silverado & Sierra 2500HD, 3500HD Crew Cab; 07-13 Avalanche; 07-14 Suburban & Yukon XL Let fresh air circulate through partially opened windows while keeping the rain and other elements out; Reduces interior wind noise and window fogging and keeps car interior cooler when parked in the sun Features an in-channel mounting design crafted from proprietary high-performance material No special hardware or drilling required; Car wash safe Blue-Gray finish provides optical clarity and complements Lund Interceptor hood shield Proudly made in the USA and backed by a limited lifetime warranty