This Dryer Exhaust Duct measures 6' L and is constructed of snap-lock metal that is crush resistant and flexible. It features one male fitting and one female fitting for standard 4" exhaust openings. This exhaust duct is the best choice for quick and easy installation and for use as an extension with other vent ducts. This product is an accessory item compatible with several brands; check to see if your model number is compatible. Installing this accessory will require basic hand tools and novice repair experience.