12 inches in length, the Phatty Antenna has a massive 1" base and and 1/2" rod for a hefty look. These Phatty Antennas are twice the size of your typical antenna. Get the real Phatty Antenna and send those other so called fat antennas back to the buffet. This antenna is made out of T6 6061 aluminum and then polished to a chrome like finish. To quote the manufacturer on the polishing, "and when I say chrome like, I mean it. People always ask us who does your chroming - nobody, it's fully polished."