perfect for Home & Commercial Use: This 4-inch external extractor vent is an excellent choice for a range of applications including dryers, kitchens, bathrooms, offices, garages, sheds, campers, and more. It's perfect for anyone needing reliable exhaust and ventilation. Simple and Efficient Installation: Whether installing on a wall or ceiling, setup is hassle-free. The vent stays securely in place with 4 screws, and a rubber gasket is provided to dampen noise, ensuring a quieter operation in indoor and outdoor environments. Constructed with Durability in Mind: Made from heavy-duty 304 stainless steel, this extractor vent cover offers superior durability, resisting rust and corrosion. Its robust construction guarantees long-lasting performance in all weather conditions. Advanced Ventilation Technology: Designed to prevent air backflow, the vent has a one-sided sealed flap and includes a foam stopper inside the hood. This ensures it operates quietly while protecting against outdoor noise, and intrusion by birds, rats, and rain. The actual product may have slight color difference or difference, which will not affect the use Colour:Silver Material:Stainless steel Package Contents: 1 x dryer vent cover Outside with rubber gasket 4 x screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.