ECCPP Side Mirror Replacement for 1999-2007 Ford F250 F350 F450 F550 Super Duty with Telescopic Manual-Folding Dual Glass - Texture Black FITMENT - 1999-2007 Ford F250 F350 F450 F550 Super Duty DUAL GLASS - Dual glass provides wider visual angle, making it easier and safer when changing lane and merging onto highway. TELESCOPIC - Extended Mirrors provide wider visual area which reduce the risk of accident caused by blind area. MANUAL FOLDING - The mirror could fold up against the vehicle, which is convenient when parking in a tight place. ITEM INCLUDING - 1 pair of mirrors (1 Left Side Mirror and 1 Right Side Mirror), Half year limited warranty