GOOD MATERIALMade of high quality stainless steel material, eco-friendly, safe, sturdy and durable to use. CONVENIENTVery easy to install, and the air volume can be controlled to meet at your request by adjusting the control valve of our air vent, convenient and practical. WIDELY USEDCan be perfectly used for indoor exhaustion, less noise, and it also could be used as a decoration role.Design simple, fashionable appearance, fine workmanship and excellent quality. EASY TO CLEAN Can be perfectly installed on the ceiling or wall, also very easy to disassemble for convenient cleaning. OUR GUARANTEE please don't worry If you have any problems, please feel free to contact us, we will do our best to help you solve your problem. Description: Our ventilation duct cover is made of high quality stainless steel, sturdy and durable to use. It can be perfectly used for indoor exhaustion, it is also very easy to install and disassemble, convenient to clean. It has simple design, fashionable appearance, fine workmanship and less noise, really a practical vent for home Specifications: Condition: 100% Brand New Material: Stainless Steel Color: Silver Size Options: Approx. Top Diameter x Base Diameter Approx. 140 x 100 mm/5.5 x 3.9 inch Approx. 165 x 125 mm/6.5 x 4.9 inch Approx. 190 x 150mm/7.5 x 5.9in Weight: Approx. 115g 250g Package Included: 1 x Stainless Steel Air Vent