Features: *Adjustable air volume: This ceiling air supply vent grille cover features adjustable air volume, allowing you to easily control the airflow in your space. *Made of high-quality ABS material: Crafted from ABS material, this vent grille cover is built to last and withstand daily use. *Easy to install and secure: With its easy installation process, this vent grille cover can be quickly mounted and is designed to stay securely in place. *Efficient indoor exhaust and noise reduction: This vent grille cover is perfect for indoor exhaust, effectively reducing noise and improving air circulation. *Decorative design: Not only does this vent grille cover serve a functional purpose, but it also adds a touch of decoration to your space. Specifications: *Product Name:Air Outlet Valve Material: ABS Colour: white Size: 75/100/150/200mm Package Content: 1pcs*Air Outlet Valve Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Adjustable air volume: This ceiling air supply vent grille cover features adjustable air volume, allowing you to easily control the airflow in your space. Made of high-quality ABS material: Crafted from ABS material, this vent grille cover is built to last and withstand daily use. Easy to install and secure: With its easy installation process, this vent grille cover can be quickly mounted and is designed to stay securely in place. Efficient indoor exhaust and noise reduction: This vent grille cover is perfect for indoor exhaust, effectively reducing noise and improving air circulation. Decorative design: Not only does this vent grille cover serve a functional purpose, but it also adds a touch of decoration to your space.Specifications: