Our copper wall vents make a beautiful addition to any home. They are shipped double boxed with bubble wrap. There is a protective sticker to keep the copper safe from scratches and blemishes that must be removed before installation. All copper wall vents feature a 5 inch throat extension to make installation quick and easy. Sturdy Copper Outside Wall Vent Exhaust with Damper and Screen. 16 oz Copper. 26 Gauge Quality *This Vent is NOT for Dryer Vent Use - Building code for dryer vents requires that they have damper door ONLY and NO SCREEN because they will plug with lint - Please refer to our other products for this purpose - https://www.amazon.com/dp/B078DMM3TM?ref=myi_title_dp