Shop Nilight Window Visor Compatible with Chevy Silverado 1500/Avalanche 2007 2008 2009 2010 2011 2012 2013 GMC Sierra 1500/Silverado/Sierra 2500-3500HD Crew Cab Yukon XL in Channel Rain Guards in high quality, support 2-year warranty. Nilight window deflectors are great for all weather conditions,help improve ventilation inside and outside your car to reduce mirror and window fogging while increasing air circulation.