Smart Blonde is one of the largest factory-direct distributors of novelty aluminum signs and license plates in the U.S. and we are manufacturers too. Every item we carry is of the utmost highest quality aluminum metal because we believe it absolutely matters! We have compared plastic and the super heavy weight steel (3 lbs each) signs and license plates as well as the very ultra thin lightweight aluminum embossed and non-embossed signs. Our conclusion was simple: Plastic was really just ok steel was way too heavy to ship and stock and the ultra lightweight aluminum... well they just bend like a piece of paper. Beep Beep Roadrunner License Plate - Size: 6"x12"