Features: Experience with our Adjustable Round Ceiling Vent, craft from carbon steel materials for durability and aesthetic appeal. Features multipurpose designs, this vent allows easy adjustment of airflows direction and fit most ventilation systems. For home improvement enthusiasts, interior designs, and anyone look to enhances indoor air circulation. For installation in homes, offices, and commercial space like shopping mall, ensuring efficient ceiling ventilation. Upgrades your space with this stylish and functional ceiling diffuser, designs to various interior decoration styles while optimizing air flows. Specifications: Component: Carbon Steel Type: As Picture Show, Two Type to Choose Size: 7.9x4.7cm/3.11x1.85inch, 5.4x2.9cm/2.13x1.14inch, 6.4x3.9cm/2.52x1.54inch Package Includes: 1pc Ceiling Vent Cover note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.