his 4-pack stainless steel round vent cover set is made of high-quality stainless steel, offering excellent corrosion resistance and durability, making it suitable for various indoor and outdoor applications. Each set includes 4 vent covers, all equipped with high-density screen mesh to effectively prevent dust, insects, and other debris from entering while ensuring smooth airflow. The simple and elegant round design is easy to install and perfect for kitchens, bathrooms, factories, warehouses, and more. It is an ideal choice for ventilation systems.