Fitment: compatible with 1999 - 2004 Chevy Silverado GMC Sierra 2500, 1999 - 2006 Chevy Silverado GMC Sierra 1500, 2001 - 2006 Chevy Silverado 2500 HD 3500 Tahoe & GMC Sierra 2500 HD 3500 Yukon Yukon XL Denali, 2002 - 2006 Chevy Avalanche 1500 2500, 2000 - 2006 Chevy Suburban 1500 2500 & GMC Yukon XL 2500, 2001 - 2003 Chevy Silverado GMC Sierra 1500 HD, 2005 - 2006 Chevy Silverado GMC Sierra 1500 HD, 2007 Chevy Silverado GMC Sierra Classic Package contents & dimensions: the left trailer mirror (driver side) with 12" x 7" plane mirror, manual folding for easily passing narrow space and avoiding crashes Functions: featuring manual folding, manual adjustable plane mirror, the multifunctional side mirrors can strikingly enhance your driving experience Simple installation: just simply connect the plugs of the trailer towing mirror to the corresponding power cord, no drilling or modifications required（professional installation would be highly recommended） Note: This mirror is engineered as a direct replacement for vehicles with the specified feature set. If your mirrors lack any of the listed functions, compatibility may be affected