Metal, Aluminum black powder coated. Will not rust or corrode. Our license plate frames designed to fit north American standard 12" x 6" plates. As an experienced seller, General Tag has been dedicated to provide you High Quality, Heavy Duty Auto, SUV, Truck Accessories. This high quality license plate frame is made of Aluminum Metal, and it's the best quality item in the market. The lettering and art work are done by waterproof vinyl on the license plate frame and it will last for many years without any damage. It will not get brittle or cracked. It fits on all USA and Canada vehicles. Durable to last under all weather conditions.