Auto Ventshade 194536 In-Channel Ventvisor  Window Deflector, 4 Piece for 2014-15 Chevy Silverado & GMC Sierra 1500/2500/3500 Crew Cab Pickups ONLY COMPATIBLE WITH : 2014-15 Chevy Silverado & GMC Sierra 1500/2500/3500 Crew Cab Pickups ONLY Precision-engineered and custom molded for an exact fit Keeps rain out and lets fresh air in Installs in window channel for sleek appearance Allows window to be cracked, reducing heat build up in parked vehicles Constructed of strong, yet flexible high-grade acrylic material