Premium Materials - Made of stainless steel, safe material, solid, durable and rustproof. Kitchen tool with fine workmanship and beautiful appearance for modern homes. Practical Design - Round flat cover with 45 blinds, which is not only an insect net but also a protection net for rainy days and windy days. Easy to Install - You can easily control it by adjusting the regulating valve, Reverse buckles design allows you to fix it perfectly on the ceiling or wall. Wide Applications - The ventilation duct cover is very suitable for bathtub vents, kitchen extractor hoods, air conditioning units, air evacuation pipes. Circulation and Ventilation - The circular mesh structure facilitates the circulation of wind in your living space, providing you with a new and tasteless living and working environment.