Important Note: All covers must be ordered by Duct Opening Size. Do not measure your existing cover. If you are unsure about which size to purchase, please send us a message. Our return air covers are made-to-order and are considered custom orders; we do not take any returns or exchanges unless they have been damaged while shipping or have manufacturer issues. We are not responsible for the wrong dimensions given by the contractors or customers. P.O. boxes will not be accepted. Our metal register covers help transform a rooms appearance with minimal effort. They are designed to sit on top of the floor and can be held down by screws. The registers are black powder coated, this finish gives a protective coating that will resist staining or corrosion. With a 1/16 in. thickness and a well-defined cut, these registers will not only last a lifetime but will also enhance the look of any room. We include 2-steel black counter sink screws. These floor vents are 1/16 in. thick metal with a powder coated black. Comes with 2-holes for installation so that customers can drill them. No dampers included. Design size has to match the duct opening size. Predrill first our floors before installing the screws. Check video of Installation.