Modernize your home in minutes with this easy, functional and decorative update. As a great alternative to traditional plastic registers, these elegant edges with a brushed nickel finish are designed to coordinate with your flooring and room finishes. Rust proof dampers make it easy for you to adjust the airflow direction in any room. Measure your duct opening, insert a new Hampton Bay Floor Register, and let the transformation begin. Fits 4 inch x 10 inch duct opening.