Excellent Material: Made of high quality stainless steel, eco-friendly, safe, sturdy, durable and rust resistant. fine workmanship, exquisite decoration, modern new home is essential. Modern design: round flat cover with 45 blinds, built-in anti-fly net, has louver in rain and rain function, windproof net prevents small animals from entering the house. Easy Installation: By adjusting the exhaust valve control valve, the exhaust valve can be easily controlled to meet your needs. It can be perfectly fixed on the ceiling or on the wall and is easy to disassemble for easy cleaning./li> Widely used: the ventilation duct cover is perfect for indoor exhaust, which reduces noise, ideal for bathroom vents and air extractors, air conditioning units, kitchen fans and vents. Ventilation and Ventilation: The circular mesh structure allows wind to flow easily through the space you live in, providing you with a new and tasteless living and working environment.