THE PERFECT SIZE: Our extremely durable cast iron grille registers are what your home, office, or cabin needs to stand out. This black register cover fits 10 Inch x 10 Inch vent openings. The outside dimensions are 12 inches long by 12 inches wide. MADE IN AMERICA: All of our registers, grilles, louvers, and dust covers are made in our state-of-the-art facility outside Boston, Massachusetts where special molds are DESIGNED for each individual product. Each grille comes with a 100% lifetime guarantee of quality and perfection. INSTALL IN MINUTES: All of our grilles are specifically DESIGNED to fit the exact measurements you need. As one of the only manufacturers of specialty size grille openings you can rest easy knowing that the size you purchase is going to fit your vent opening EXTREME DURABILITY: Our grilles are handcrafted by experts with premium metal materials. The cast iron vent covers are the premiere choice in the industry for its original design. ACCESSORIES SOLD SEPARATELY: Louvers and mesh floor trap are sold separately. Louvers help control airflow that can save money and heating in the long-run. """The iconic Victorian look of our metal Scroll grilles adds elegance and luxury to your home. Scroll grilles are available in solid brass, aluminum, cast iron, and steel."""