Premium Stainless SteelMade of high-quality stainless steel material, environmental-friendly, safe, sturdy and durable to use Very easy to install, and the air volume could be controlled to meet your demand by adjusting the regulating valve of our air vent, convenient and practical. Easy InstallationCan be perfectly installed on the ceiling or wall, also very easy to disassemble for conveniently cleaning. Choose and measure the mounting place for this air diffuser. Mount it into the diameter 100 mm pipe and secure the fit. Finally, adjust the diffuser to the optimal air flow, by turning the inner circle. Stylish DesignSimple design, fashionable appearance, fine workmanship and excellent quality. Can be perfectly used for indoor exhausting, lower noise, and it also could be used as a role of decorating. Pratical Air VentCover ventilation exhaust and distribute the air evenly with your regulation. Universal connectivity, lets you cover air supply to fans, inline fans, air conditioner exhaust etc. Widely UseThe stainless steel looks great in indoor and outdoor use. Great use in home and apartment for bathroom ventilation, kitchen hood exhaust, garage and other ventilation. Also designed for office and industrial ventilation systems indoors and outdoors. Our ventilation ducting cover is made of high-quality stainless steel material, sturdy and durable to use. It can be perfectly used for indoor exhausting, it is also very easy to install and disassemble, convenient to clean. It has simple design, fashionable appearance, fine workmanship and lower noise, really a practical exhaust vent for home using! Specifications: Condition: 100% New Material: Stainless steel Color: Silver Size Options: Approx. Top Diameter x Base Diameter Approx. 140 x 100mm / 5.5 x 3.9inch Approx. 165 x 125mm / 6.5 x 4.9inch Approx. 190 x 150mm / 7.5 x 5.9inch Weight: Approx. 115g-250g Package Included: 1 x Stainless Steel Air Vent