Durable Construction: Our floor vent covers are made of 1.8 mm thick steel, capable of supporting up to 300 pounds; both sides are coated with rust-proof primer to ensure your floor grilles remain in excellent condition. Suitable for air conditioning, heating, and other systems Ideal Size: Primarily designed for 12 x 4 inch ducts, our floor vent covers measure 11.6 x 3.5 inches, with an outer frame size of 13.6 x 5.6 inches; please be sure to measure your duct opening size before purchasing to determine the correct size to order Adjustable Airflow: This adjustable air damper features a sturdy and durable steel panel with a stylish and attractive appearance, and is paired with ABS base, offering durable and corrosion resistance. You can easily adjust the airflow direction and volume of your central air conditioning system, ensuring quiet and efficient airflow Easy Installation: installing our floor vents is effortless and requires no tools or screws; Just remove the old cover and place the new one into the standard duct opening; They are designed to be durable and sturdy, able to withstand foot traffic without bending or breaking Versatile Use: this pack includes 10 pcs floor registers, catering to all your replacement needs; These vent covers are suitable for residential use and can also be installed in restaurants, hotels, or office spaces, making them versatile for various environments Features: Stylish Design: The minimalist design of these vent covers not only serves a functional purpose but also enhances the aesthetic appeal of any room. Their sleek finish makes them a stylish addition to both modern and traditional interiors. Cost Effective Solution: Purchasing our vent covers provides excellent value, ensuring you have enough replacements on hand. This effective solution allows you to maintain a consistent look throughout your space without breaking the bank. Specifications: Material: steel Color: nickel Size: approx. 12 x 4 inches/ 30.48 x 10 cm Package includes: 10 x Floor vent covers Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.