About this item Sturdy and durable to use: Ventilation grille made of high quality ABS material, safe. Easy to disassemble: Can be perfectly installed on the ceiling or wall, for convenient cleaning. Easy to use: Very easy to install with the box installed, and the coverage could be adjusted according to your demand. Application : Can be Perfectly used for indoor exhaust, less noise, and it could also be used as a decoration role. Simple design: Fashionable appearance, fine workmanship and excellent quality.