Decorative and functionally DESIGNED aluminum square vent cover adds instant appeal to your home decor These air vent grilles are handcrafted in the USA from premium quality and durable aluminum. Easy to install with a drop in design. Aluminum grilles are often used as ceiling vent covers and wall vent applications due to their light weight. They are rustproof and work well in moist areas Square design of these decorative vent covers are made from 3/16 sheet aluminum with a lip on the back to hold the cover in place in your floor vent Dimensions: Inside Measurement 12x4 Outside Measurement 14x 5.5 DESIGNED to match all Reggio Registers Square Pattern Grilles for a complete and finished look