Uxcell a14080100ux0016 100mm Mounting Dia Adjustable Disc Ventilation Air Vent Grill Cover Product Name : Disc Ventilation Grill; ax. Dia. : 150mm/6" Outlet Dia. : 90mm/3.5";Mounting Dia : 100mm/4" Total Height : 82mm/3.2";Materials : ABS Plastic Color : White, Black; Net Weight : 126g Package Content : 1 x Disc Ventilation Grill