This is the interior rear view mirror for a 1937-40 Ford, it's a 5 1/4" by 2 1/2" oval. I have sanded metal down to raw steel, then applied red primer. I have polished the glass mirror lens, it's perfect. I have stripped, then lovingly polished the aluminum mounting bracket, it is righteous. Mirror is nice and snug on the mounting bracket, it will hold it's position/setting- - -easy deal, better than new.