Hon&Guan 4 Inch Adjustable Air Vent Covers 100mm Ceiling \u00F8100 mm, White\nProduct Details\n--Adjustable air vents: Adjust the airflow by rotating the disc in the centre. It can also be turned off completely.\n--Easy to install: The \u2018fin\u2019 at the end is designed to help hold it in place. Can be mounted on ceilings and walls (inside and outside).\n--Wide applications: The round ceiling vent is ideal for ventilating bedrooms, bathrooms, kitchens, caravans, air conditioning system, etc. It can be used to connect to 100mm diameter ducts, exhaust fans, cooker hoods, etc.\n--Round design: Compact and delicate. Removable and easy to clean, just wipe the surface with a damp rag and it will shine like new.\n--Well-made: made of excellent plastic, sturdy and wear-resistant, odourless and safe.