Callaway Great Big Bertha Driver
It was obvious when we saw the new Big Bertha what the next step would be... and here it is. The Callaway Great Big Bertha Driver packs in more distance-enhancing features than any driver in the company's history. The R-Moto clubface uses both internal ribs and variable thickness to increase ball speed on mis-hits, it has an extremely low center of gravity and an OptiFit hosel to get you the proper launch angle, and it uses adjustable perimeter weighting technology to help eliminate sidespin. Oh, and it's available with four different weight classes of shafts, making it even more like a custom-fitted club.